Crafted from food-grade silicone , our water bottle tops for kids is safe, BPAFree and dishwashersafe. It can be reused and not easily damaged, lasting for a long time. Our silicone water bottle attachment boasts a superior leak proof and spill control valves design, messy spills and ensuring a hassle-free . Our toddler water bottle toppers fitsseamlessly onto a wide of standard water bottles (28mm) in the market, allowing you to transform your existing bottles into child-friendlyoptions effortlessly. Great for protecting your child's delicate mouth andgum from the hard bottle mouth. Our spout adapter is lightweight, compacts, and easilyfits into your diaper bag or backpack when you are on a family outing, traveling, or simply on the move. The easy grip handle makes it incredibly convenient for parents and babies to hold and carry the bottle. Our water bottle adapter features a round siliconetag that can be easily written on using a dryerase marker(Not included), which makes it convenient for labeling and personalization. Marking can be removed by washing with mild dish soap and water.