100% pure, high quality natural rubber; Certified non-toxic: BPA, PVC, Phthalate, Nitrosamine free, food grade paint; Sealed hole design prevents accumulation of mold, bacteria and dirt inside the toy and makes it easy to clean;Promotes sensory development; 4 different textures for tactile exploration; Bright rainbow colors for visual stimulation; Develops hand-eye coordination and gross motor skills; Develops a sense of cause and effect and spatial awareness; Introduces social development through interactive play; Perfectly sized for baby's hands; Produced sustainably and biodegradable