---
product_id: 149295641
title: "Boao 4 Pieces Retractable Knife Prop False Trick Gadget Toy Disappearing Dagger Fake Plastic Blade for Halloween Fools Day Party"
brand: "boao"
price: "$583"
currency: MXN
in_stock: true
reviews_count: 9
category: "Boao"
url: https://www.desertcart.mx/products/149295641-boao-4-pieces-retractable-knife-prop-false-trick-gadget-toy
store_origin: MX
region: Mexico
---

# perfect for costume & pranks reusable & safe plastic 21cm retractable blade Boao 4 Pieces Retractable Knife Prop False Trick Gadget Toy Disappearing Dagger Fake Plastic Blade for Halloween Fools Day Party

**Brand:** boao
**Price:** $583
**Availability:** ✅ In Stock

## Summary

> 🗡️ Disappear into the fun—prank like a pro, shock like a magician!

## Quick Answers

- **What is this?** Boao 4 Pieces Retractable Knife Prop False Trick Gadget Toy Disappearing Dagger Fake Plastic Blade for Halloween Fools Day Party by boao
- **How much does it cost?** $583 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/149295641-boao-4-pieces-retractable-knife-prop-false-trick-gadget-toy)

## Best For

- boao enthusiasts

## Why This Product

- Trusted boao brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Portable:** Lightweight 3.5 oz design fits in your pocket or bag—ready to surprise anytime, anywhere.
- • **Safe Yet Realistic:** Made from blunt, obtuse plastic—looks real but harmless, so you can prank without worry.
- • **Party-Ready Quad Pack:** Four identical knives to multiply your prank power and keep the laughs rolling all night.
- • **Instant Disappearing Act:** Spring-loaded retractable blade vanishes with a quick pull, fooling even the sharpest eyes.
- • **Versatile Fun for All Events:** Ideal for Halloween, April Fool’s, theater, or any costume party where you want to steal the show.

## Overview

The Boao 4 Pieces Retractable Knife Prop set features four 21cm plastic blades with spring-loaded retractable mechanisms that slide safely into the handle. Designed for adults 14+, these realistic-looking but blunt knives are perfect for Halloween, April Fool’s, theater, and costume parties. Lightweight and reusable, they deliver safe, crowd-pleasing illusions that turn any event into a memorable prank fest.

## Description

Buy Boao 4 Pieces Retractable Knife Prop False Trick Gadget Toy Disappearing Dagger Fake Plastic Blade for Halloween Fools Day Party: Gag Toys & Practical Jokes - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Adrenaline fun - My boys and I stash these all over the house getting each other and it's the best time. 🤣 If you are super rough these wont hold up, we have had ours though for well over a year.
Review: Fun Toy! - I got this to do the viral TikTok trend, and they did not disappoint! Results were hilarious. At first glance they look real. As for the quality, they're just okay. They sometimes get stuck and won't collapse in, which could cause minor injuries. They aren't sharp enough to do any serious damage, but it could hurt a bit. Also, they make a rattling sound when moved. For the price though, they are great and I'm definitely satisfied with my purchase.

## Features

- You will get: 4 pieces trick retractable knife in the package, they will make you the magician and prankster in the party, that everyone will be able to join in on the fun
- Size and material: fake knife and handle are approximately 8.27 inch/ 21 cm long; Made of obtuse plastic, plastic blade retracts into the handle, blade disappears into handle, will do no harm on human body
- Magical design: the disappearing dagger features a small plastic knife with spring loaded retractable blade which slides into the handle and slides out again when you pull away, your friends will be shocked by this little gadget novelty toy
- Suit for: funny gag toy for fancy dress, Halloween, April Fool's Day, theater props, school play, tricks or jokes and any other funny occasions and costume events, you can take them out whenever you need a laugh or distraction, but not suitable for children under 14 years of age
- Interesting gift: they are cute and very portable, everyone will love getting this fun retractable knife, they can make for a good small prize or Easter egg, you can fool your friends and make them laugh by playing this fake dagger

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VK7KGH4 |
| Age Range (Description) | Adult |
| Best Sellers Rank | #17,403 in Toys & Games ( See Top 100 in Toys & Games ) #105 in Gags & Practical Joke Toys |
| Blade Length | 21 Centimeters |
| Blade Material | Plastic |
| Blade Shape | Straight |
| Blade Type | Fake |
| Brand | Boao |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,219) |
| Hand Orientation | Ambidextrous |
| Handle Material | Plastic |
| Included Components | Blade |
| Item Length | 8.27 Inches |
| Item Weight | 3.52 ounces |
| Manufacturer | Boao |
| Manufacturer recommended age | 13 months and up |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Fancy dress, Halloween, April Fool's Day, theater props, school plays, tricks or jokes, costume events |
| Reusability | Reusable |
| Set Name | 4-Piece Set |
| Shape | Straight |
| Special Feature | Retractable |
| Style | Modern |
| Theme | Fantasy |
| UPC | 760385951112 |

## Product Details

- **Age Range (Description):** Adult
- **Blade Length:** 21 Centimeters
- **Blade Material:** Plastic
- **Brand:** Boao
- **Color:** Black
- **Handle Material:** Plastic
- **Included Components:** Blade
- **Special Feature:** Retractable
- **Style:** Modern

## Images

![Boao 4 Pieces Retractable Knife Prop False Trick Gadget Toy Disappearing Dagger Fake Plastic Blade for Halloween Fools Day Party - Image 1](https://m.media-amazon.com/images/I/71NJ2KNVflL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: Can you close it?**
A: No, they don’t close.

**Q: how much pressure does it take to push it in? Also if you use it to many times will it get stuck?**
A: Bought this last Christmas for my youngest grandson. They are very safe. It takes very little pressure to push in the blade. All four knives are very functional. He plays with these knives constantly so I would expect at least one of them to malfunction. All are still fully functional.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Adrenaline fun
*by M***J on December 7, 2025*

My boys and I stash these all over the house getting each other and it's the best time. 🤣 If you are super rough these wont hold up, we have had ours though for well over a year.

### ⭐⭐⭐⭐⭐ Fun Toy!
*by L***A on October 13, 2025*

I got this to do the viral TikTok trend, and they did not disappoint! Results were hilarious. At first glance they look real. As for the quality, they're just okay. They sometimes get stuck and won't collapse in, which could cause minor injuries. They aren't sharp enough to do any serious damage, but it could hurt a bit. Also, they make a rattling sound when moved. For the price though, they are great and I'm definitely satisfied with my purchase.

### ⭐⭐⭐⭐ OK quality for the price
*by G***O on August 31, 2025*

Fair quality and look realistic.

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-10*