Leakproof Lids - These straw cups for toddlers with crystal Lids which reinforced sealing silicone 100% spill proof. Easy to Store - Stackable design allows more convenient and easier storage without taking up too much space. for parties, travel, camping, picnics, barbecues or many other occasions. Perfect for Family - These toddler cups are very sturdy, can withstand multiple falls, great for kids and adults. Colorful sleeves are designed to help you to identify the cup is who's and also can protect your hands from hot or very cold beverages.