【FOOD GRADE SILICONE】 The sippy cup are made from 100% food-grade silicone, which are non-toxic, lead-free, phthalate-free, BPA free silicone..【WEIGHTED BASE 】Weighted base and tactile bumps provide stability and sensory awareness to reduces spillage,and preventing messes..【LEAKPROOF, SHATTERPROOF】The liquid won't come out through the lid, it can keep the damage to a minimum and keep your child’s clothes and the floor nice and clean. The silicone training cup is shatterproof as well, it won't break when dropped..【A PRACTICAL CUP 】It is gentle and flexible, specifically designed to fit baby’s mouth and hands. Soft silicone protects baby's developing teeth, it is a great for toddlers trying to master fine motor skills and drinking independently; Silicone is heat-resistant, you can use it with cold, warm and hot foods and liquids, it's safe to pop in the microwave, dishwasher, freezer and even oven!.【SO VERSATILE】Our silicone training cups are specially designed for developing tipping and sipping skills, along with the easy grip handles, and reusable mini silicone straw. It can be an open cup, or use the soft silicone lid over a cup to create a non spill sippy cup, and the straw fits perfectly through the hole to create a straw cup, too. So versatile!