HIGH QUALITY MATERIAL - VIBRATITE canning lids are made of tinplate (not stainless steel) and silicone seals, which can withstand high and low temperatures, can be used in refrigerators, microwave ovens and dishwashers. Note: Please keep the lids clean and dry after washing to prevent rust. Lids are for one-time use only. NO LEAKAGE - Super seal ensures air tightness and prevents leakage, providing an easy storage solution. UNIVERSAL SIZE - With a diameter of 2.75 inches(70MM), these covers are ideal for all ordinary mouth Mason cans, including ball and Kerr brands. The band can be applied in combination with silicone fermenting lids and stainless steel sprouting lids, the screw thread on the bottle mouth can increase the friction force of hands, which facilitates the opening of the bottle. LABELLING - Enjoy the ability to customise each lid with a permanent marker. Simply write directly on the lid surface with a permanent marker so you can easily identify the contents of the jar. SUPER VALUE SET - Including 200pcs cannling lids mason jar lids (not bands and jars). Can be used to store fresh foods such as jam and dry goods, fruits and vegetables etc. Our Policy: * Please check ETA before placing the order. * Items returned not in original conditions are subject to a 50% deduction or deny any credit. The part must not have any type of damage, such as signs of installation by the customer, marks, or scratch. Please contact us through messages for the following reasons :Our respond time is 24 hours. If you did not receive your item within the ETA . If you received an item that is does not fit, please provide us your model and serial number to check. If you need to return an item . Item not as described for one of the following reasons (Item is defective, Doesn't match description or photos, Received wrong item, Missing parts or pieces, Arrived damaged). Thank You for Shopping!