Crafted for your child's safety and comfort, every part of this Silicone Straw Cup is composed of high-quality, food-grade silicone that has passed stringent compliance assessments. This non-toxic and odor-free cup is designed to withstand temperatures from -40F to +446F. Multifunctional and adaptable, it includes two interchangeable lids, transforming easily from a sippy cup to a baby snack container. Without the lid, it serves as an open drinking cup, while the ingenious straw stopper prevents the straw from slipping out, empowering your little one to drink independently. Its textured surface not only provides a secure grip but also offers a soothing massage to your baby's gums, aiding in the natural teething process, and promoting the healthy emergence of new teeth.