Can Cannon Launcher Cups are precision-fit, thick cups designed specifically for Can Cannon and M.U.L. launcher tubes. Similar to a shotgun wad, these durable cups securely hold and propel a wide variety of small items anything that fits for fun, safe recreational launches (observe all safety guidelines and never aim at people or animals). Product Specifications Compatibility: Can Cannon and M.U.L. launcher tubes Construction: Thick, wad-style launcher cup (precision fit) Function: Holds and propels small projectiles from launcher Use: Recreational launching follow all safety guidelines Examples of Suitable Projectiles: Confetti Gender reveal powder T-shirts Mac n Cheese (packets) Rocks Marbles Anything that will fit!