Our DinDin Smart Stainless Steel Cup is ergonomically designed for toddlers with a handle that is easy for little hands to grip. Great for transitioning from a sippy cup to a big kids cup. The hard plastic outer shell insulates and keeps drinks at the optimal temperature longer while protecting child’s hands from extreme temperatures. Cup is made of the highest quality, food grade 304 stainless steel (18/10 stainless) in South Korea. This product is nontoxic, BPA free, Phthalate free, PVC free and lead free.