[Parcel list]Including 10 packs of medium size rooting ball, The diameter of the ball is 3.15 inch, which can help your cuttings soil contact space [Convenient design]the grafting ball is half transparent, which is convinent for us to observe the root formation & Moisture and dryness of soil [High quality]the grafting ball is made of high-quality plastic, and it has been thickened, which makes them not easy to break or deform, can be used for many times [Easy Install]Designed with automatic lock disassembly and assembly are more convenient and flexible [Wide Use]the grafting ball provides no damage to the parent plant, works on both indoor and outdoor plants Colour:Black + translucent Material:plastic Package Contents: 10 x air layering pods 20 x Ties Only the above package content, other products are not included. Note: Light reflection 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.