【Safe & Durable PPSU Material​】Made of premium PPSU, this BPA-free straw cup resists 356℉/180℃ heat, enduring repeated steam clean without warping. Parents worried about chemicals and durability can trust its robust build for daily feeding and cleaning, offering long - lasting safety and peace of mind 【360° Drinking with Gravity Ball】The weighted gravity ball straw lets baby drink from any angle, whether lying or sitting. This eliminates the struggle of reaching less liquid with a fixed straw, simplifying drinking for those still mastering postures and encouraging independent sipping 【Spill Proof Straw Design】NCVI leak proof straw stops milk and water from flowing backward, cutting choking risks and messy spills. A key concern for parents of young babies, this feature keeps the cup clean, making feeding time safer and more convenient 【Easy-grip Handles & Portable Shoulder Strap】Dual easy - grip handles fit tiny hands, helping develop grasping skills. The detachable shoulder strap adds portability, letting parents carry the cup easily in strollers, cars, or outdoors, solving mobility issues for busy lifestyles 【Simplify First Drinking Steps】The soft silicone straw, It oozes water with just a sip. It eases initial resistance to cups, guiding them to build essential drinking skills and giving parents an effective way to start their baby’s hydration journey NCVI PPSU Milk Straw Sippy Cup Spill Proof for Toddlers 1-3 Years Old