After years of R&D, we've developed the 3.0 growth-oriented sippy cup more suitable for babies' growth. Following the characteristics of babies' oral development, it elevates "scientific feeding" to a new level. Leak-proof and anti-choking design with easy-grip handles helps babies smoothly transition from bottles to cups. Food-grade silicone is safe and odorless, resistant to high and low temperatures for disinfection.