TESTED FOR SAFETY BY A 3RD-PARTY: We don't mess around when it comes to our children so all insulated sippy cups for toddlers are rigorously tested by certified US laboratories SUPER EASY TO CLEAN: Lids and straws are top rack dishwasher safe. Hand washing your metal kids sippy cups are recommended to maintain your vibrant coral and yellow stainless steel tumbler colors NO CHIPPING OR PEELING: Each unbreakable toddler smoothie cup is powder-coated so it will resist chipping, peeling or melting better than any painted stainless steel baby training cup FOOD GRADE MATERIALS: Food-grade silicone and 18/8 stainless steel are used in these baby cups. For these straw cups for toddlers 2 years old is the minimum recommended age - Training cups for babies ABOUT CUPKIN: Our goal is to produce better-looking and more practical stainless steel tumblers for our children, and yours! Designed in Seattle, WA, and built to last, our double walled powder coated cups will soon become a family staple. Cupkin is a US-based children’s product brand started by a husband and wife team based out of Bothell, Washington, USA. We originally partnered with the founder of the HydroFlask brand who helped us create the best quality drinking cups with lids and straws for your kiddos. Having two girls of our own, product quality is our TOP PRIORITY. Any Cupkin cup you purchase has been tested and contains NO phthalates, NO BPA’s and NO chemical toxins. So whether you use your Cupkin at home, outdoor or at a restaurant, each cup is the perfect replacement for disposable waste. This listing includes a set of 2 stainless steel cups, 2 lids and 2 silicone straws. All of the other children’s cups on the market are made with a cheap painted enamel shell, which chips, cracks and fades easily. Our cups are produced with high heat tolerant powder coating. They’re more resistant to scratching, denting, chipping and fading. Dishwashing is not recommended for the stainless steel cups so make sure to verify your dishwasher’s power output otherwise it could potentially damage the cups. Lids and straws however are 100% dishwasher friendly. So whether you’re just browsing or considering purchasing a set of our kids cups, on behalf of my wife and our 2 little girls... I wanted to welcome you to our family. We’re confident that your little girls and boys will enjoy their water, milk, juice or smoothies in their fancy, new Cupkin(s). Stay safe parents, you got THIS!!! - Max, SooJin & (E + P)