Premium material: Airtight rubber gasket made of silicone material, will not absorb , good sealing, reusable and durable, which is very safe for you and your family to . It is easy to replace the gasket as you need. Have been designed for ordinary mouth cans or jars. with stainless steel clip system of clip top jars to keep your food fresher for . Applications: The old rubber seal is easy to wear out after a long time , these replacement silicone seals are fine replacements. They can be applied for airtight sealing to keep your fruit, vegetables, jams, sauces preserved, it is effortless to wash, you can simply add a little soap and wash with warm water. Colour: transparent white Material: silica Size: 97x70mm Package Contents: 20 * Sealing ring Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.