About this product nylon Imported Super Warm Stroller Mittens: Our stroller mittens are made of waterproof fabric, high-quality cotton, and soft plush, with an elastic band design added to the cuffs for a secure and effective windproof barrier, protecting your hands from the elements. Enjoy comfortable winter walks with your little one, even in cold weather. Easy to Put On and Take Off: These gray stroller mittens feature an expandable design with 3 hidden buttons on each side. Simply place them on the handlebar and fasten the hidden buttons. Both hands can easily slip in and out, and the mittens won't slide off, offering ultimate convenience. Large Size: These extended stroller mittens measure approximately 9 × 7.5 inches, large enough to accommodate your own gloves inside for extra warmth and protection of your forearms, ensuring no cold wind enters from your wrists. They offer excellent thermal insulation. Universal Stroller Accessories: Designed to fit handlebars between 2-4 cm in diameter, these mittens are not only perfect for stroller handles but can also be used on shopping carts, golf cart handles, electric vehicles, bicycle handlebars, and more. Machine Washable Gift: These stroller mittens will keep your hands warm all winter long. After use, simply toss them in the washing machine and hang to dry. This makes an excellent Christmas or birthday gift for parents, friends with children, or colleagues who enjoy playing golf.