Features 1. PACKAGE INCLUDES: 10 laser cut lids and 10 beautiful labels for marking plants. The lids are primarily used with wide mouth (86mm or 70mm diameter) Mason/Ball jars. The abundant quantity is enough for your daily use and replacement. 2. SUPERIOR QUALITY: Durable covers made of food-safe, high-quality PP material, sturdy and reusable. The black lid blocks most of the light from above entering the jar, and a small amount of light can still get in from the sides to nourish the plants. 3. WIDE APPLICATION: Suitable for most hydroponic plants, such as pods, heirloom tomato plants, basil, mint, spider plants, hyacinths, daffodils, copper coins grass and ivy etc. Let's have a relaxing and enjoyable hydroponics experience. 4. BEST HELPER FOR HYDROPONICS: Simply set it and watch your plants slowly drink water and thrive. Can also help prevent root shock and harden the plant. 5. EASY TO USE AND STORE: Remove the protective film from the lid before use, then place it on the jar mouth to secure (recommended for use with amber or black painted jars). You can easily hand wash them with soap and air dry, stack and save for next use. Specification Material: PP Color: Black Size: Outer Ring Diameter 7 cm, 8.6 cm, Inner Ring Diameter 3.5 cm Weight: 100 g Package Include: 10× Hydroponic Lids 10× Labels Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store