Halafs 100 Pcs Wide Mouth Mason Jar Lids, Canning Lids for Ball, Kerr Jars - Leak Proof Split-Type Lids with Seals Rings(3.38in Lids) (Silver)Split Design A set of 100 silver wide mouth canning lids, which can be replaced separately for better economic benefits and meet your needs. Safety Material Mason jar lids wide mouth are made of tinplate, which is not easy to rust and does not contain BPA. Can withstand high and low temperatures. Good Air tightness Canning supplies sealing rubber ring is built in the cap, the Canning lids are installed more tightly. It is a good helper for kitchen