Foam Toys,PU Foam Ball: 1)Pill stress ball, 2)Different colors and sizes, 3)Non-toxic.Safe for use, 4)Accept OEM. Foam Toys, PU Foam Ball:1, We ... stress ball are made of high quality polyurethane, which is both non-toxic & biodegradable. 3, We also accept your OEM items with ... client logo.4, PU foam can be molded in an endless ...