Rattle disc inserts for baby toys like amigurumi, rattles, crochet toys but also for dog toys & cat toys. The disc is made of hard plastic joined together & the noise is made by internal balls. Use this inside a pouch/bag first to secure it into your toy design. 5 Large Rattle Disc Inserts For Diy Toys, Amigurumi Crochet & Pet 30mm Noise Maker, Toy Making Parts, Noisemaker Box