• Zenitsu's Nichirin Butterfly Knife 1
  • Zenitsu's Nichirin Butterfly Knife 2
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Zenitsu's Nichirin Butterfly Knife - Demon Slayer (Metal)

Zenitsu's Nichirin Butterfly Knife - Demon Slayer (Metal)

$34.99 USD
$34.99 USD
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Inspired by the series Demon Slayer, this knife features a striking black and silver blade adorned with yellow flames, complemented by grey and yellow handles. It includes a metal safety latch to lock the blade securely in place, both when not in use and when deployed.

Also known as a Balisong or Butterfly knife, this folding pocket knife has two handles that counter-rotate around the tang, concealing the blade within the handles when closed. Butterfly knives are particularly useful in situations where using both hands to open a knife is inconvenient. Please ensure you check your local laws regarding the possession and import of these knives.

Overall Length: 8.5  Inches
Blade Length: 4 Inches
Closed Length: 5 Inches
Blade Material: 440 Stainless Steel, Heat Treated, Silver Blade with Black and Yellow Flames
Blade Thickness: 3.25mm 

Blade Features: Non-sharp
Handles: Grey and Yellow, Alloy, Hard Surface Finishing
Other Features: Lock Back

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Frequently Asked Questions

What is the butterfly knife made from?

Zenitsu’s Nichirin Butterfly Knife is made from stainless steel, featuring a high-quality finish and bold yellow lightning-inspired accents based on his iconic sword in Demon Slayer.

Is the blade sharp?

No, the blade is unsharpened and blunt. It’s designed for safe handling, cosplay, and collection—not for real cutting or combat use.

How long is the knife when fully opened?

The knife measures approximately 9 inches in length when opened. It’s compact, making it perfect for display, cosplay, or light flipping practice.

Is this knife spring-assisted?

No, it is a manual butterfly knife with traditional flipping mechanics. There are no spring-loaded or automatic features.

Is the design accurate to Zenitsu’s Nichirin Blade?

While it’s not a full-length replica, this butterfly knife version incorporates key design elements from Zenitsu’s sword—like the bright yellow color scheme and bold aesthetic—reimagined in a compact format.

Is this good for cosplay?

Absolutely. The vibrant design and compact size make it a standout cosplay accessory for Zenitsu fans. It’s lightweight and safe to carry at conventions or events.

Can I use it for butterfly knife tricks?

Yes, the dull blade makes it safe for basic flipping and trick practice. It’s a great anime-themed option for fans looking to combine style and skill.

Who is this butterfly knife best suited for?

This is perfect for Demon Slayer fans, Zenitsu cosplayers, anime collectors, or anyone who enjoys themed butterfly knives with eye-catching design.

Is this a toy?

No, this is a collector’s item. While it's safe to use, it’s designed for older teens and adults—not intended for young children.

How should I maintain the knife?

Wipe it down with a dry, soft cloth to prevent dust or fingerprints. If using for flipping, occasionally apply a small amount of lubricant to the hinge. Store in a cool, dry place to preserve the color and metalwork.