These sensory toys have different textures for tactile exploration and sensory development. Their bright colors are ideal for visual stimulation and can spark your kid's imagination. Promotes tactile development with different sizes and shapes. These rainbow balls are perfect for sensory and tactile stimulation. They're bouncy, too! Made with 100% high-quality thermoplastic rubber, they are hypoallergenic, nontoxic, and free of BPA, phthalate and latex. Our rainbow balls are strong, durable and safe for kids and adults alike. Dishwasher safe. Perfect for the bath, classroom, home or office, they're great for parents, teachers, students, therapists and anyone else