This product is made of premium neoprene, not just hold comfortable, but also can keep fingers warm and keeping the popsicle cold. They are light, foldable and easy to store. Perfect for your car, office, meeting room, home, and on your way to the office or school. Features - ColorAssorted Color - Material: Neoprene. - Size: About 12.5x10x0.3cm / 4.92x3.93x0.11inch. - These sleeves are made of neoprene. Neoprene is a far better insulator and longer lasting, keep your drink ice cold. - Our drink sleeves stretches to fit a variety of bottles, such as, vacuum cup, beer can. - Coffee sleeves can keep your coffee drinks at a cool and hot temperature and keep your hands dry. - Reusable and environmental friendly, replaces traditional throw- paper sleeves and helps to save our environment. - Perfect for your car, office, meeting room, home, and on your way to the office or school. Package list: 4 x can sleeve