This Air Layering Propagation Balls helps plant branches to take root quickly and complete reproduction and replication. The stems of green plants and the branches of trees can quickly grow into new plants. STRONG & FAST RESULTS: Plant root growing box was created especially with the cutting globe design, it can help your cuttings get stronger roots and thus reproduce more mature plants faster than normal Spread method. It allows you to view the propagation results within 1-6 months after installation. SECURE LOCK:Grafting rooting growing box designed with plugs and corner locks that interlock with each other and are fixed to the branches to secure the spreader in place, even if there are no rods underneath.However, you can use plastic ties to hold the shells securely. NO DAMAGE: Rooting device ball does not damage the parent plant at all, because it only uses a small branch on the plant you want to clone, so there is little interference, nor will it interfere with the natural growth of the plant. REUSABLE: Propagation ball is durable and can be used repeatedly, so you can clone more plants according to your preferences. Material: PP plastic Available sizes: S-5 cm M-8 cm L-12 cm Package: 10 x plant rooting grow box