About the Hydroponics 1/8" rope ratchet light plastic hangers:

1.Rope Ratchet  with carabiner clip easy to adjust – durable- reliable.

2.Max 68KGS,147LBS per pair.

3.Two pieces into one pack.

4.Easily use and adjust the height.

5.Stainless steel spring ,with screws and hooks.

6.Maximize growth with proper light position.

7.Heat and cold resistant.

8.Automatically lock in place. 

9.Hanging filters,fans ,reflectors.

10.To lower your reflector ,depress the lever located on the ratchet body mechanism while holding the rope.