Specifications: Material: Silicone Optional Color: Orange, Clear Size: 9.5cm / 3.75in Outer Diameter: 9.5cm/ 3.75in Inner Diameter: 6.9cm / 2.75in Thickness: 22mm / 0.09in Features: · 【Material】 Quality silicone rubber material, no smell, non toxic, safe to preserve food and durable to use. · 【Optional Colors】 2 colors for you to choose from, bright orange and classic clear, to meet your preference or help you distinguish different types of jars. · 【12 Pack】 12 pcs per set, for you to replace your old jar rings and keep the best seal effect, nice replacements of your jar sealed gaskets, great for everyday storage. · 【Airtight & Leak-proof】 Easy to install on your jar lid, help to seal the glass canister and provide your food an airtight and liquid-tight environment, better preserved your canned foods. · 【Washable & Reusable】 Waterproof silicone rings, can be easily washed clean and reusable, good to store your fruits, vegetables, nuts, self-made food, preserved food, etc. · 【Universal Gaskets】 Outer diameter 9.5cm/ 3.75 inches, inner diameter 6.9 cm / 2.75inches, thickness 0.09 inch, compatible with most ordinary cans or jars lids like Mason jars of this size, seal up tight, perfect fit and work well. Package Includes: 12 PCS Seal Rings Leak-proof airtight silicone gaskets keep your food clean and safe inside the canning. Made of food-grade silicone for long-lasting durability. Washable and reusable. Saving your money from buying new cans and jars. Slightly stretchable. Fits most regular-mouth canning jars. Great for fruits and vegetables, homemade foods, soaps, etc.