1. [12 Lids And Labels]Package includes 12 bamboo wood lids and 12 label stickers. Bamboo lids fit perfectly with standard regular mount cans, and the yogurt lids allow to stack jars to save space. The included 12 label stickers help you better distinguish each can. Glass cup lids meet your daily use and replacement. 2. [Natural Material]The reusable lids for glass cups are made of natural bamboo wood and food grade silicone. Safe materials and fine workmanship make the bamboo lid smooth and burr- edges, not easy to deform and wear, small and lightweight, long-lasting. Let you choose and use with confidence. 3. [Perfect Silicone Sealing]Ball wide mouth lids are fixed with built-in silicone seals, ball jar lids are easy to snap on, which can effectively isolate airborne moisture, dust and humidity from entering the glass cups with bamboo lids, ensuring a tight, leak-proof seal and keeping stored items dry and fresh. 4. [Wide Application]These wide mouth jar lids are perfect for turning empty jars into storage containers for the kitchen, pantry and more. Ball wooden lids for mason jars are great for storing dry foods like cookies, candies, and nuts. Bamboo lid cups can also be used for crafts, cotton balls, and office supplies.