WECK is a brand name of a line of canning jars that are made in Germany. This WECK accessory pack contains 10 non-reusable food grade rubber rings which can be embedded into WECK brand glass lid. It is what will help you create the seal for WECK containers.
Material: High Quality Food Grade Rubber.
Round Rim & Weight: 100mm; 46g.
Feature: None.
Origin: Product of Germany.