Size: There are three sizes, S/M/L. S: Diameter 5cm; M: Diameter 8cm; L: Diameter 12cm. Fast growth results: This specially designed plant rooting equipment can help your cuttings get stronger roots, so that more mature plants can be propagated faster than conventional propagation methods. It allows you to view the propagation results within 6-8 weeks after installation. Secure Lock: Uses the ancient method of Air Layering which is about growing roots right onto the branches to replicate your existing plants and produce a new one. The automatic buckle is more convenient and disassembly is more flexible. Reusable: the propagation trays are robust and durable enough to be used over and over again, so you can clone more plants to your hearts content. Attach and clone your existing plants effortlessly and without worries thanks to the Air Layering Pod. No damage: does not cause any damage to the mother plant, as only a small branch is used on the plant that you want to clone, so there are no or only minor disturbances and the natural growth of the plant is not disturbed. Uses the ancient method of Air Layering which is about growing roots right onto the branches to replicate your existing plants and produce a new one. The box works on both indoor and outdoor plants like roses, climbers, trees, fruit bushes, fruit trees, and hard to root plants like Magnolia and Camellias. Step 1 At the position where rooting is needed, peel off the bark to a width of about 0.8in-1in (2-2.5cm). Be sure to peel the bark clean Step 2 Put moist moss or garden soil into the plant root growing box. Wrap the plant root growth box filled with damp moss or garden soil around the stripped bark. Step 3 Fasten the plant root growth box (Youd better use a plastic tie). Step 4 According to different tree species, grow for 3-6 months. After the root system is full, it can be cut off and planted.