Bolli is a new sensory development ball for kids. It's great for stretching, manipulating, grasping, and teething for toddlers. Bolli ball is made from 100% nontoxic; BPA and phthalate free, food grade silicone. The tactile soft and pliable sculptural design can be squished and stretched without making any noise! In addition to being an excellent fidget, the open ball design is fantastic for shape exploration, strengthening fine motor skills, grasping, and eye-hand coordination. So many options in just one ball!