With our toy collection, your child can have fun while learning valuable skills. Stacking toys promote fine motor skills and spatial organization. These stacking toys are colorful, fun, and engaging for your baby. Suitable for ages 4 months and up. Interview Hand wash in warm soapy water before first use. Dishwasher safe. Made of food-grade silicone, BPA-free, cadmium-free, lead-free, and phthalate-free. Made of BPS-free food-grade silicone, it is safe to chew and easy to clean.