Multiple Functions: Each nursery sponge is cut into 8 lanes to facilitate seed germination and shell breaking, and it can reduce the workload in suitable occasions.High-quality Materials: Made of high-quality sponges, the clone collars are soft, durable and breathable, reusable and waterproof, ensuring the safety of plants.Perfect Size: Each package includes 60 clone collars. 2 inches in diameter and 0.75 inches thick. It fits perfectly in 2 inch net cups.Seed Nursery: Suitable for flower seed nursery/vegetable seed nursery/concentrated nursery is easy to manage/easy to move and transport/removal does not hurt the root, fast growth / Seedling , growth.Widely Used: Very suitable for germination of hydroponic plants in DIY nursery boxes and cloning machines. Whether you are using a commercial cloning machine or a dedicated nursery box, this is the for plant germination.Specification:Name: Vegetable Planting Sponge Block Clone CollarsFunction: used for seed germination, hydroponic plant planting, hydroponic vegetable planting cottonSize: 48mm x 19mmMaterial: colour: blackPackage Contents:70 x Planting spongeOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.