UNIQUE 8 SPOKES DESIGN -- Advanced 8 Spoke Design allows for less pressure on cuttings. One cloning collar can hold many small cuttings at a time with less work in suitable occasions.PERFECT SIZE - Each package includes 100 pcs garden clone collars. Diameter 2 inch, thickness 0.75 inch. It fits in 48mm net cups perfectly.MATERIAL -- EVA, the clone collar is soft, durable, reusable and waterproof, ensuring the safety of your plants.MAKE PROFESSIONAL CLONING EASY -- Cloning up to 8 times the number of cuttings in the same space is perfect for commercial cloning machine or DIY cloner, helping you increase production with less work.WIDELY USED -- Great for Hydroponic Plant Germination in DIY cloners and clone machines. This is the right choice for plant germination whether you're using a commercial clone machine or are a dedicated DIY.Material: EVA spongeSize: 48mm x 19mmColour: BlackPackage list:100 X Planting spongeOnly the above package content, other products are not included.Note: Light shooting 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.