Both Long (200mm) and Short (70mm) Hanging Clamps are generally used to fix light and sound equipment to OPTI Trilite rigs.
Hanging Clamps can be used to fix many other items and other custom hanging accessories, like the S hook right, are also available.

100SH S HOOK

 
  100 HC1 SHORT
  including M10 x 20 wing nut and bolt.

100 HC2 LONG including M10 x 20 wing nut and bolt.