Polyurethane foam; Handcrafted stress balls are a fun way to promote ycompany, organization, hospital or school, while also helping everyone who receives one squeeze away the stress of everyday life!; We offer hundreds of creative shapes to meet the needs of any promotional program!; Note: Due to their handcrafted nature, stress ball sizes, colors and textures may vary Factory cannot guarantee consistent imprints or PMS matches; Not intended as a child's or pet's toy; Product Size: 4.25 w x 1.5 h x 1.25 d