These natural cork lids are simple, beautiful, and easy to pop on and off your Weck Jars, making them a popular choice for art supplies, crafts, and décor. Weck also offers Wooden and Keep Fresh Plastic Lids, as well as replacement Glass Lids, Rubber Rings, and Clamps. Materials: natural cork Made by: Weck Made in: Germany Specifications: Small - 60 mm Mold Jar 760 Tulip Jar 762 Juice Jars 766, 764 Cylinder Jars 905, 975 Medium - 80 mm Mold Jars 751, 900 Cylinder Jar 908 Large - 100 mm Mold Jars 740, 741, 742, 743 Tulip Jars 744, 745, 738, 739 Barrel Jar 776 Cylinder Jar 974 Use: Because the cork lids are not meant to be used with clamps, we do not recommend this lid for liquid or food. For a tighter, food-safe seal, we recommend Weck's Keep Fresh lids or glass lids with rubber rings and stainless steel clamps. Care: These lids are hand wash only. Avoid prolonged contact with water to preserve quality and strength of materials. Further Reading: The J. Weck Company was founded in Germany at the turn of the last century. Only Weck Jars feature their signature strawberry trademark—accept no substitutions! View our entire selection of Weck Jars and Accessories!