Safe Material: Made from 100% food-grade silicone, our baby stacking cups are free from BPA, PVC, and phthalates. Unlike plastic and wooden materials, silicone is very soft, perfect for babies to grasp and chew on, and parents don’t need to worry about your child getting hurt. Unique Design: Featuring seven different-sized square rings and a cute triangular top, the design includes animals, numbers, and natural elements. The soft and simple colors capture babies' attention and promote visual development. Early Educational Toy: Safe material with textured surfaces for teething, each silicone building stacking cup has unique holes at the bottom, making them suitable as baby bath toys, beach toys, and for stacking into various shapes. They help train counting, visual, tactile, and logical thinking skills, enhancing fine motor skills and creativity. Versatile Teething Toy: The soft silicone material with textures makes these baby stacking tower perfect for teething babies, helping to soothe teething discomfort. Easy to clean, they are boilable and dishwasher safe. Perfect Baby Shower Gift: With the unique design, safe materials, soft colors, and exquisite packaging, our baby stacking cup sets make an excellent gift for birthdays or holidays. If you’re not satisfied, contact us for a satisfactory solution.