Introducing our 12oz/350ml Grow Up Sippy tumbler, perfect for on-the-go toddlers and young children. This tumbler features a hard plastic screw-on sippy lid with convenient handles, as well as a screw-on keeper mug lid for easy transport. It also comes with a reusable plastic straw, making it an eco-friendly choice for parents. Made with BPA-free lids and food-grade stainless steel, this tumbler is designed to be both safe and durable. Plus, its double-walled insulation keeps drinks warm for up to 6 hours or cold for up to 12 hours, perfect for keeping little ones' beverages at the perfect temperature. Each tumbler comes in a stylish gift box, making it the perfect present for any young child