A small, cylindrical medical injector with a clear glass chamber filled with a bright yellow liquid. The body is made of matte black plastic with subtle rubberized grip textures for secure handling. Features a red safety cap on the needle end and a push-button activation mechanism on the opposite end. The chamber has measurement markings and a small biohazard symbol for authenticity. The design is sleek and functional, resembling real-world auto-injectors with military-grade durability.