Differ from other plastic or stainless- steel lids, this bamboo mason jar lid is made of pure natural material, which is biodegradable, eco- friendly, light and not easily deformedThis jar screw top lids made from BPA free Material. Threads and EPE foam inside will keep food fresh and leakageThese bamboo covers are polished very smooth. The use of pure natural textured bamboo lids can add color to your kitchen, bathroom and other home environmentsThe bamboo canning lids fits for mason jars and can be used for storing leftovers, fresh 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:70mmMaterial:bamboocolour:Wood colorPackage Contents:8 * Bamboo and wood coverOnly 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.