HyperDog Replacement Pouch & Bands HyperDog Replacement Pouch & Bands Replacement Pouch & Rubber Band for HyperDog Ball Launcher Convenient pack of replacement pouch and band are perfect for use with the HyperDog Ball Launcher (sold separately). Pack includes one pouch to hold balls and launching band made of surgical-grade rubber tubing. Replacement pack of balls is also available and sold separately.