✯SAFE MATERIAL & DURABLE: The ShineMe stainless steel water tumblers are made of food-grade 304 stainless steel, they are safe for both kid use and adult use. Unlike plastic drinking glasses， it won’t break easily, and it will not rust for a long time use. The Metal cups can be used to drink coffee, milk, juice, etc. ✯NON-SLIP & HEAT INSULATED: Each stainless steel cup will come with a silicone sleeve. The sleeve not only protects your hands from hot or super cold beverages, but also make it easy to be hold. And the sleeves come in 6 different colors which will make your kids or friends know which one is their own cup. ✯LEAK-PROOF LID: When the lid of our kid metal cups sealed, they are totally leak proof, no more worries for kid to spill the beverage everywhere. And the cups can be taken to anywhere easily, like outdoors, camping, parties, beach, wine, pints, snacks, BBQ, picnics, and any other activities your might have in your life. ✯MULTIPLE WAY TO USE: The spill proof kid cups can be easy sipping from the edge of the tumbler cup directly , and they are also straw friendly. You can also put the straw in the center hole on the lid to drink by straw. And the cups can be used for water, milk, and coffee as well, both for kids and adults. ✯EASY TO CLEAN & SAVE SPACE: Our drinking cups are dishwasher safe and stackable which is convenient to storage and save space. ✯DECENT GIFT: With the premium quality and attractive appearance, make it an appreciated gife for New Year, X-mas, Valentine's Day, Housewarming... any occasion you may like a decent gift:) These ShineMe reusable drinking glasses are made of imported 304 stainless steel, these stainless steel cups have no lead and toxins, BPA free, safe and healthy, and the water is poured into it without odor. Each stainless steel cup has a silicone case on the outside. It not only protects your hands from hot or super cold beverages but also makes it doesn't slip easily from your hands. Different from a glass cup, it won't break. These colored stainless steel cups have smooth inner walls and edges, no burrs, and does not hurt your lips when you drink water, you can use it with confidence. In addition, thanks for the smooth inside and outside, it is very convenient to clean, dishwasher safe. You and your families are going to love the unique, durable, and colorful stainless steel cups!