Unique rim design teaches child to drink from a regular cup. Insulated to keep drinks cool longer. Bite resistant rim. 100% spill-proof; leak-proof; break-proof guaranteed. Seal Zone Technology: Trusted seal - always. BPA free. Sized just right for little hands. Unique flow control valve, easy for child to drink. Promotes safe, independent drinking. Dishwasher-safe. Nuk is proud to make Gerber Graduates tableware products. For more than 50 years, moms have trusted Nuk and Gerber to help them nurture their babies best. Assembled in USA with parts made in USA and China.