40 Pieces Regular Mouth Mason Jar Replacement Rings, 70mm Silver Mason Storage Split-Type Lids Canning Jar Bands Leak Proof

Package includes 40 pieces regular mouth mason jar bands, adequate quantity for you to use or replace the mason canning jar caps regularly. Made of durable tinplate (not stainless steel), high and low temperature resistant, can be reused many times, can be used in refrigerators, dishwasher and microwave ovens. The thread on the bottle mouth will increase the friction of the hand and help open the bottle cap, match with silicone fermentation cap and stainless steel germination cap. Perfect for sealing the mason canning jars that stored spices, sweets, biscuits 【PERFECT SEALING DESIGN】our sealing rings can make many plastic or metal lids leak proof and air tight, each jar sealing ring features small grooves design for tight and secure fit,not easy to slip or move around, good to protect the food in your jars safe and fresh. 【PRACTICAL THREAD DESIGN】the mason jar bands can be combined with silicone lids, designed with the screw thread on the bottle mouth can increase the friction force of hands, which facilitates the opening of the bottle.