Perfect Size: Each package includes garden clone collars. 2 inches in diameter and 0.75 inches thick. It fits perfectly in 2 inch net cups. 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. 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 neat, consistent growth. High-quality Materials: Made of high-quality sponges, the garden clone collars are soft, and breathable, reusable and waterproof, ensuring the safety of plants. 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., Weight: 0.86862131228 Pounds, Manufacturer: Quzenn