[FOOD GRADE MATERIAL] - Our Wooden Jar lids are made with natural wood and Food Grade Silicone,You won't have to worry about the health of your family. DOUBLE-LAYER LACQUER & STRONG PROTECTION - wood mason jar lid in the production of double lacquer baking, gives wood greater protection, while making bamboo lid surface more smooth, easier to clean. Dishwasher safe, no limited to hand washing. [SEALING SAFE] - These wooden lids form an airtight silicone seal with Ball/Kerr jars, making perfect for dry foods and pantry ,So as to better the freshness and health of the ingredients in the food containers and make the food very dry. [PACKING INCLUDED] - fit all standard WIDE MOUTH mason jars; -free; not safe for preserving; hand-wash only and clean before . [SPACE SAVING] - Easy stacking with Ball/Kerr jars, easily fit into your refrigerator, freezer which enables you to get the kitchen organized and frees up space in the pantry. color:Wood brown Material:Wood size:Outer diameter: 72mm Package Contents: 6 x Wooden Lids Only the above package content, other products are not included. Note: Light reflection 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.