• Black Star Sword
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Black Star Sword - Honkai: Star Rail (Foam)

Black Star Sword - Honkai: Star Rail (Foam)

$49.99 USD
$49.99 USD
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Capture the dark elegance of Honkai: Star Rail with this all-foam Black Star Sword replica, designed for cosplay, display, and collectors who want a lightweight, photo-ready prop inspired by the series. The silhouette and finish echo the weapon seen in the game, making it an eye-catching addition to costumes or shelves. Foam construction keeps it safe for convention use and easy to carry between events. Ideal for fans who want an accurate-looking prop without the weight or safety concerns of metal replicas.

In the world of Honkai: Star Rail the Black Star Sword stands out as a striking emblem of shadowed resolve and cosmic mystery. The blade is presented in the series as an object that carries a strong visual presence, often linked to characters who confront vast challenges and who favor an austere, powerful aesthetic.

Within the setting the sword reads as both a tool and a symbol: a combat instrument shaped by forces beyond simple steel and a piece that marks its wielder as someone connected to darker, celestial themes. Its design suggests a purposeful balance between elegance and menace making it memorable to fans of the game without revealing story details.

  • Overall Length: 39.5"
  • Blade: 28.5" black foam blade
  • Handle: 11" handle | All foam construction
  • Material: high-density foam with painted finish
  • Intended use: cosplay, display, photography, and collection
  • Care: spot clean with mild soap and water, air dry and store away from direct heat
  • Lightweight foam construction for comfortable wear during conventions and photoshoots
  • Foam surface provides a safer option for crowded events and costume contests
  • Finished look reproduces the dramatic silhouette fans recognize from the series
  • Durable enough for posing and display while remaining easy to transport
  • Ready for simple customization with craft paints and accessories if you want a personalized look
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Specialty Replicas

At Sword Slice, we’re committed to excellence in every blade we create. Our katanas and swords reflect unmatched quality, precision craftsmanship, and our passion for delivering the best.

For Fans by Fans

We create meticulously crafted replicas made by fans, for fans. From iconic anime to beloved games, movies, and TV series, our collection captures the detail, essence, and spirit of every character’s weapon.

New Products Every Month

We’re always adding new and exciting products for our customers—whether it’s a katana from the latest anime or a greatsword from a fan-favorite game. Our goal is to continually grow and expand our collection.

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Frequently Asked Questions

Is this sword safe to bring to conventions and events?

Yes. The all-foam construction makes this replica a safer option for conventions and photo use compared to rigid metal props. Always check the specific rules of the event you plan to attend since policies vary between organizers.

Is the Black Star Sword made of metal?

No. This is an all-foam replica designed for cosplay and display. It is not intended to function as a real weapon.

Can this prop be used for LARP or staged combat?

Foam props can be suitable for light, controlled contact in some LARP groups, but suitability depends on your group rules and the type of activity. If you plan to use it for any contact, confirm with organizers and treat the prop gently to avoid damage.

Does the sword require assembly out of the box?

Most foam replicas arrive ready to display or use without complex assembly. If any minor assembly is required it is usually simple, but check the product listing for specific notes before purchase.

Can I repaint or customize the surface?

Yes. The foam surface accepts many craft paints and light adhesives commonly used for prop work. Test any paint or glue on a small area first to ensure compatibility and good adhesion.

How should I clean and maintain this foam sword?

Spot clean with a soft cloth, mild soap, and water, then allow the item to air dry completely. Avoid soaking the foam and keep it away from direct heat sources to preserve shape and finish.

Is this an officially licensed Honkai: Star Rail item?

No. This product is an unlicensed replica inspired by the design seen in Honkai: Star Rail. It is intended for fans who want a display or cosplay prop evocative of the series.

Is this prop suitable for photography and display?

Yes. The replica is designed with visual accuracy in mind to perform well in photographs and on display. Its lightweight build makes it easy to pose and position for shoots or shelf presentation.

Will the foam hold up to repeated posing and handling?

The foam construction is built for regular handling such as posing and moving between events, but it is not indestructible. Avoid rough impact, sharp objects, and prolonged pressure on thin areas to prevent dents or tears.

Does the sword come with a stand or display base?

This listing covers the sword replica itself; display stands and bases are typically sold separately. If you need a stand, consider options made for lightweight props or custom supports designed for foam pieces.