Features: Size:(Diameter ) Small:5cm Medium:8cm Large:12cm Color: Black, Green, Transparent 1.What you receive: package comes with 1/3/6 pieces reusable plant rooting devices, which can meet your daily use and replacements, it can help to attach and clone your existing plants with ease and without worries, you can also send as gifts for others who are plant lovers 2.Durable and reusable: the plant rooting grow boxes are made of quality PP plastic, sturdy structure makes it not easy to break or deform, reliable and durable, you can use them for many time,proper size to fit most kinds of plant roots 3.No damage to plant root: the botany root controllers are created with a cutting globe design which helps your cuttings achieve stronger roots to reproduce a more mature plant faster than normal propagation methods; Provides no damage to the parent plant at all as it only uses a small branch on the plant you wish to clone, and it doesn't disturb the plant's natural growth 4.Wide applications: the high pressure propagation ball grafting device can be widely applied for both indoor and outdoor plants like roses, climbers, trees, fruit bushes, fruit trees, and hard to root plants like magnolia and camellias, will meet your multiple needs 5.Locking firmly and securely: the garden plant rooter box is designed with stoppers and corner locks which interlock with each other and secure on the branch to hold the propagator in place even without a stem underneath, and you can also use the plastic ties to hold the shells securely