This bamboo mason jar lid is made of pure natural bamboo material, which is a renewable resource, safe to use and not easy to deform. Washable and reusable, can preserve food easily. The bamboo jar lids are designed with detachable silicone rings, can block the air and prevent food from spoiling, keep your foods fresh and your drinks cold from frost. The glasses have a textured surface that makes them slip-resistant and easy to hold. This cute cups is very fashionable, aesthetic and characteristic. Excellent workmanship. These gorgeous cups are cute gifts for women and men, Coffee Bar Accessories, housewarming gifts for new house, Birthdays, Tea Sets, Home Bars, Graduation, Weddings, Parties, Christmas Gifts, Valentine's Day, or any other occasion.