Perfect Fit & Size Precision: Specifically designed for regular mouth jars, these 70mm (2.76 inch) outer diameter bamboo lids feature a 58mm (2.28 inch) inner diameter. Accommodating any straw under 8mm/0.31 inch via a 10mm straw hole, these lids ensure a snug, leak-proof fit for a variety of glassware. Eco-Friendly & Safe: Crafted from natural bamboo, our lids offer an eco-conscious alternative to plastic. They are BPA-free, ensuring no harmful chemicals contaminate your beverages. Durable and easy to maintain, these lids promise longevity and safe usage for all your drinking needs. Leakproof Assurance: Equipped with a silicone ring and seal, our bamboo lids guarantee a tight seal to prevent any spills or leaks. The design not only enhances the lid's functionality but also simplifies cleaning, as the silicone components are easily removable. Care Instructions for Longevity: To ensure the durability of your bamboo lids, avoid using hot water above 85℃/185℉ for cleaning. Store the lids in a dry place when not in use, and avoid lengthy exposure to humid environments to prevent warping and maintain quality. Versatility for Every Occasion: Compatible with most regular mouth canning jars and various glass cups (16oz, 20oz, 24oz), these lids with straw holes are perfect for events with family and friends, offering a stylish and practical solution for your beverages. Colour:As Shown Material:bamboo wood Package Contents: 20 * cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.