EISCO Dynamic hyper fire cart. Low cost, high quality and durable. Safety catch to prevent unwanted firing. Low friction, low mass wheels for better accuracy. Wheels mounted inside the body to prevent tangling with cords, rigid, non-twist body designed for heavy loads, non-slip platform surface. Stackable design for doubling or tripling weight. Hook and claw pads for non-elastic collisions. Accurate cart weight of 600gm.