Features:1. Four small holes: Bundling through four small holes is stronger and more efficient than four corners.2. Automatic buckle: More convenient, more flexible disassembly, can be completed by one person.3. Observation port: The branch can extend from the observation port. Use black tape to seal when not in use. Prolonged ventilation will affect the rooting time.4. Water inlet: The diameter of the water inlet is increased to facilitates watering.5. Adjustable: The bottom can be adjusted reasonably according to the diameter of the branches.Notice:1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow slight deviation due to manual measurement.Specification:Type: high pressure plant rooting ballColor: blackMaterial: PPSize:Small: diameter: 80mm, applicable branches size: 3-8mmMedium: diameter: 85mm, applicable branches size: 5-12mmLarge: diameter: 120mm,applicable branches size: 1-3cmQty: 1pcs/3pcs optionalInclude: Choice 1:1 x plant rooting ballChoice 2:3 x plant rooting ball