Easy to Use: Uses the ancient method of air layering where roots grow directly on the branches to replicate your existing plants and produce a new one. It works on both indoor and outdoor plants or on hard-rooting plants. Fast Results: The plant rooting device helps your cuttings achieve stronger roots to propagate a more mature plant faster than normal propagation methods. You can view the propagation results within 6-8 weeks after installation. Safe clone: The root ball of the plant does not harm the mother plant at all. Since only a small branch is used on the plant you want to clone, there will be little to no disturbance and will not disturb the natural growth of the plant. Material: Plant root grow box made of high quality PP plastic, is professional for plant breeding, provides opportunities for cultivating a variety of plants. The breeding tray is durable and can be used repeatedly. Size: We have three sizes to choose from: S/M/L. S: diameter 5cm, high pressure branch size: 3-9mm; M: diameter 8cm, high pressure branch size: 7-12mm; L: diameter 12cm, high pressure branch size: 12-31mm.