Spill-Proof Design: Pop-up straw features a spill-proof valve to keep surroundings clean Durable Construction: BPA-free plastic lid and body are dishwasher-safe for easy cleanups Easy-Clean Lid: Designed to eliminate areas where dirt and grime could get trapped Secure Straw: Straw is easy to disassemble, stays tethered so there are no loose parts Easy One-handed Drinking: Kids enjoy an easy one-handed drinking experience at the push of a button Age Suitable: Appropriate for kids aged 3 and up BPA-Free: Crafted from BPA-free materials that won’t give off plastic tastes.