With the Falcon Eyes Clamps CBH1 you can build, in combination with two light stands and a cross beam, a complete backdrop system suitable for one backdrop. This set can also be used to expand an existing backdrop system for an extra roll or cloth. The copper pin is 53 mm long and has a diameter of 10 mm. The maximum diameter of the tube where you fix the clamp on is 35 mm. The distance from the pin to the tube is 66 mm. The clamp is fixed with a screw. The copper pin can be exchanged with spigots (optional, with 3/8" male thread), so you can mount extra lamps on the bracket. The clamp part is equipped with rubber so you don't damage your stand.