A MUST HAVE: The popular Drink Lid for Tritan Baby and Kids Drinking Cup is designed by Danish Design Company DESIGN LETTERS. FUNCTIONALITY: Add this drink lid to the sippy cup/ tumblers and the babies can use them independently . MULTI-PURPOSE: Use this Design Letters Handle alongwith Tritan Sippy Cups to give a complete look. (Sold separately) MATERIAL : The Lid is made up of Polypropylene (PP) with Silicone ring which is tough and has a good chemical resistance. The straw lid is Dishwasher Safe. DIMENSION : H: 3.3 cm. D: 7 cm.