PU Stress Toy 1.Promotional PU Round Stress Ball; 2.Safe material nontoxic and soft, 3.Suitable for all ages. PU stress toys 1, Material: PU Foam (polyurethane). 2, Certificate: En71, ASTMD, Low Lead, Low Cadmium, Phthalate free. 3, Customized design, size logo are welcome YOYO stress ball