Learning to drink out of an open cup is an important developmental milestone. The Tiny Cup is designed to help with that process. Designed for infants 4+ months. Designed to fit baby?s mouth and hands; Soft silicone protects baby's developing teeth; Open cup activates lip closure + tongue elevation; Non-slip silicone grip makes movements to the mouth more successful; Interior angle provides even flow for safe drinking; Weighted base and tactile bumps provide stability and sensory awareness to decrease spills; Safe to use with cold, warm and hot foods and liquids; 100% food grade silicone is free of BPA, BPS, PV, phthalates, lead and latex; Dishwasher safe; Built to last (silicone is bendable and flexible and doesn't fade, corrode or deteriorate);.