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.