Spring: 100% brand new and high quality.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 carried out 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 affects the rooting time.4. Water inlet: The diameter of the water inlet is increased to facilitate watering.5. Adjustable: The base can be reasonably adjusted depending on the diameter of the branches.Specification: Material: PPSize: As the picture shows (approximately) Package includes: 1 x root box Note: Please allow 1-2cm error due to manual measurement.Item color displayed in photos may appear slightly different on your computer screen because monitors are not calibrated same.