Silicone Back Gash Prosthetic: Spinal Lumps SFX Makeup - Halloween, Film

Unleash a disturbing transformation with this large back gash prosthetic, featuring protruding spinal lumps that suggest something is growing—or breaking free—from within. Inspired by body horror classics like The Thing or The Substance, this piece is designed for creature transformations, mutations, or possession FX. Crafted from skin-safe silicone and encapsulated in cap plastic, the prosthetic offers realistic texture, flexible movement, and seamless blending into the skin. Perfect for film work, horror cosplay, SFX reels, or haunted attractions, it’s a show-stopping piece of wearable horror.