12-ounce insulated stainless-steel tumbler that’s easy to sip and easy to clean Spill-resistant lid for less mess and stress; perfect for home, sipping in the booster seat, and chillin in the stroller cup holder. Removable, reusable straw that's easy to clean: To remove the straw gasket, remove the lid, then push the straw through the lid from the top, and clean away, It's that easy! Insulated stainless steel keeps drinks cold during playtime and adventures, keep your cool this tumblr is not for use with hot, carbonated, or perishable liquids. Made of durable materials that can take a tumble or two. BPA and phthalate-free; hand wash cup, dishwasher-safe lid (hand wash preferred)