Shipping
Mystery Knives ships to the United States only. All orders are shipped from the USA with live tracking.
- 1 day to process, then 2-7 business days to arrive
- Ships to United States only
Experience razor-sharp, premium mystery knives in tactical magnetic boxes. Build your ultimate collection with fast, free shipping and satisfaction guaranteed! Join over 1M passionate fans around the world, unboxing exciting custom-curated mystery knives boxes with incredibly rare designs and styles everyday!
8 active offers · AI-verified
Codes apply automatically with the Couponly extension →
Couponly tracks 8 active Mystery Knives offers — 8 promo codes, with discounts up to 20% off. We last checked them 6 days ago.
Experience razor-sharp, premium mystery knives in tactical magnetic boxes. Build your ultimate collection with fast, free shipping and satisfaction guaranteed! Join over 1M passionate fans around the world, unboxing exciting custom-curated mystery knives boxes with incredibly rare designs and styles everyday!
Couponly tracks every Mystery Knives promo code that surfaces in real time across community forums and shared deals, then auto-tests each one against a live cart — so only verified, currently-working discounts ever reach you.
Visit mysteryknivesbox.comThe key things to know before you buy at Mystery Knives — summarized from the store's own policy pages.
Mystery Knives ships to the United States only. All orders are shipped from the USA with live tracking.
You can request a return or exchange once your order arrives.
Return policyYou can reach Mystery Knives support by email.
Auto-summarized from the store's published policies — always confirm details at checkout.
A practical guide to Mystery Knives's coupons, discounts, and policies — built from the store's own pages and our verified offers.
Mystery Knives Box serves customers in the USA with free shipping on all orders. Orders typically process within 1 day, then arrive in 2–7 business days. We provide live tracking and a 100% guarantee on knives that are defective or damaged during shipping. If you cancel within 15 minutes of checkout, refunds follow standard banking timelines; gift cards refunded to the original card within 24 hours. Ready-to-ship items cannot be canceled or edited once placed. If there’s an error on our end, we’ll fix it at no charge and you’ll receive updated tracking via USPS or UPS once your order ships.
Redeeming a coupon at Mystery Knives Box follows standard checkout flow: add eligible knives or Mystery Knife Boxes to your cart, proceed to checkout, and apply the best available coupon code before payment is captured. Codes are applied at checkout and must comply with our stated policies (for example, some items may be restricted or restricted states may affect eligibility). If a code does not apply, double-check item eligibility, shipping restrictions, and timing relative to your order status.
Mystery Knives Box coupons cover discounts as indicated by the active promos. Exclusions may apply for certain knives or restricted items, and some promotions may not stack with other offers. Minimum order requirements and new-customer limits may be specified for individual coupons in the active list. Always review the terms attached to each coupon on the store’s active coupon page for precise coverage and applicability.
Savings are shown as the discount size on the active coupons. Mystery Knives Box communicates discount amounts as ranges or as “up to” a maximum, based on the current real offers. The exact discount per order depends on the coupon you apply and the items in your cart. Do not rely on a single code; use the best available offer shown in the active coupon set.
Maximize savings by leveraging multiple simple tactics: watch for first-order pop-ups or newsletter sign-up offers; build your cart with eligible items to ensure coupon applicability; consider using the Couponly extension (if available) to auto-apply the best code; keep shipping-friendly items in one order to meet any potential minimums; track promos through the site’s active coupons page for the latest offers.
Mystery Knives Box ships to the USA with free shipping on all orders. Processing is typically 1 day; delivery takes 2–7 business days with live tracking. You can request returns or exchanges after delivery. Ready-to-ship items cannot be canceled or edited once placed. For refunds, cancellation within 15 minutes of checkout follows standard processing times; gift card refunds go back to the original gift card within 24 hours. If a shipment contains a restricted item, you are responsible for complying with local laws, and the store is not liable for illegal purchases. If we err, we’ll take responsibility for the original order at no charge. Customer care is available 24/7.
Payment is captured at the time of purchase. Gift cards are supported; refunds for gift card purchases are applied back to the original gift card within 24 hours. When applying a coupon, ensure it aligns with the current order and any stated restrictions (e.g., eligible items, state restrictions). If you encounter issues applying a coupon, verify item eligibility and the status of the order (e.g., whether it’s within the cancellation window or if a Ready to Ship item has already started processing).
Sections marked “General tip” are broad shopping guidance, not store-stated facts — always confirm the specifics at checkout.
A general shopping calendar for the months ahead — these are broad retail patterns, not Mystery Knives-specific announcements. Time a working code to one of these and you stack the savings.
Beyond costumes, many stores run pre-holiday teaser promos in the last week of October.
The world's biggest shopping day — global brands run deep one-day deals.
The year's deepest discounts. Stack a working code on top of the sale price where the store allows it.
The Monday after Black Friday leans online-only, often with extra code drops and free-shipping offers.
Promotions run through the month; watch shipping cut-off dates as it gets closer to the 25th.
General shopping tips · sale timing varies by retailer and year — always confirm the live offer.
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No. Mystery Knives Box ships to the USA only, with free shipping on all orders.
Orders process within 1 day and arrive in 2–7 business days, with live tracking.
Within 15 minutes of checkout you can update your email or shipping address or cancel the order; after that, cancellation may be restricted depending on order type (e.g., Ready to Ship items cannot be canceled or edited once placed). Refund timing depends on your bank and whether the order was canceled within the allowed window.
Yes, you can request a return or exchange after your order arrives, subject to Mystery Knives Box policies.
The policy document provided does not specify free returns or restocking fees; it states that you can request a return or exchange after delivery and outlines how refunds are processed.
Add items to cart, proceed to checkout, and apply the best available coupon code before payment is captured.
Coupon stacking policies are not explicitly stated; coupons may have stacking restrictions per individual offer terms.
Double-check the coupon’s terms, item eligibility, and any order restrictions (e.g., state laws or order type). If issues persist, review the active coupon terms on the store’s page.
The policy notes that payment is captured at purchase time and that gift cards are refunded to the original source; it does not enumerate all payment methods here.
Yes. Buyers must be 18 years or older, per the Terms of Use; there are additional state and legal considerations for knife ownership and shipment.
Mystery Knives Box offers a 100% guarantee on knives that are defective or damaged during shipping; contact support for a replacement or store credit.
Tracking is provided via USPS or UPS, and you’ll receive an updated email with tracking information as soon as your order ships.
Ready-to-ship items typically cannot be canceled once placed; edits are also not allowed after checkout for these items.
Customer support is available 24/7 through the store’s contact options on the website.
You can update your shipping address within 15 minutes of checkout; after that, changes may be restricted by the order’s processing status.
Install the extension and Couponly will test every Mystery Knives code at checkout, then apply the best working one — automatically.
The Mystery Knives name and logo are trademarks of their respective owner, shown here (including any monochrome rendering we derive for visual consistency) solely to identify the store and its offers. Couponly is an independent service — listing a store implies no endorsement or sponsorship by Mystery Knives, and we may earn a commission when you shop through our links. See our Terms for details.
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