Differ from other plastic or stainless- steel lids, this bamboo mason jar lid is made of material, which is biodegradable, eco- friendly, light and not easily deformed This jar screw top lids made from BPA free Material. Threads and EPE foam inside will keep food and leakage These bamboo covers are polished very smooth. The use of textured bamboo lids can add color to your kitchen, bathroom and other home environments The bamboo canning lids fits for mason jars and can be used for storing leftovers, sauces or juice, storing screws and nails, dry storage, spices and more. Natural materials: These bamboo jar lids are made of natural bamboo, which is safe, non- deformable and biodegradable. These is durable and does not rust, and can be used repeatedly, without BPA and phthalates. size:70mm Material:bamboo colour:Wood color Package Contents: 8 * Bamboo and wood cover Only the above package content, other products are not included. Note: Light 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.