A drinking range that takes baby from breast to baby bottle to sippy cup, all in one easy system? Weve made it. Introducing the BEABA Sippy Cup Drinking Range: stylish, thoughtfully designed drinkware to help your baby learn to drink on their own. BEABAs sippy cup drinking range has been meticulously crafted to help both parents and baby take on this important milestone, with more sips (and fewer spills) along the way! At 4mo+, start with the 2-in-1 Bottle To Sippy Learning Cup, which is fitted with an interchangeable bottle nipple to silicone spout to help ease babies transition from breast to cup in their first drinking endeavors. Then move to our Straw Sippy Cup and Stainless Steel Straw Sippy Cup at 8mo+ to continue babys drinking journey straws strengthen muscles in the mouth that are important for eating and talking. Using a straw encourages babies to use the muscles in their mouths, such as the lips, tongue, and jaw. The entire range is 100% watertight and leak-proof, open or closed or upside down. Perfect for on the go and to help prevent spills! Use them at home or on the go the range has been specifically designed with spill and temperature control in mind. All sippy cup spouts and straws made from 100% supple silicone, and the handles, which can help baby hold the bottle, can be removed if needed. As always materials are BPA, Lead & Phthalate free.