These kids water bottle blanks are made from high-quality, BPA-free 304 stainless steel. They feature double-wall vacuum insulation, keeping drinks hot for 6 hours and cold for 12 hours. With a 12oz volume and straight design, they fit in cup holders and can be easily carried in schoolbags. The lid includes a handle, and the soft silicone nozzle protects kids' mouths and teeth. The tumbler is easy to clean by hand and is dishwasher safe.