The baby cup that's designed so they can drink from any angle. Perfect for babies starting with straws from 6 months up. The clever two-piece valve stops leaks, so no messy spills when they're transitioning from a bottle and learning to sip.• Soft silicone straw is gentle on gums, but tough enough to withstand tiny teeth • Clear measurement markers let you see how much they've had to drink• Cover flips up and down between sips to help keep the straw clean• Easy-hold handles • Cleaning brush included• Dishwasher and sterilizer safe and BPA free