polyurethane foam;Our cloud stress reliever is a great way to encourage new thinking and new ideas in the workplace; Light and fluffy, it is also a great focus piece for technology related promotions and campaigns; Our handcrafted Polyurethane foam stress balls are a fun way to promote your company, organization, hospital or school, while also helping everyone who receives one squeeze away the stress of everyday life; 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: 3.25″ w x 2.75″ h x 0.75″ d;