The Double Super Clamp features two Super Clamps that are screwed together to form a 90 degree angle. 
The Double Clamp is handy when used in pairs for mounting a length of pipe or an Alu-Core to Vari Poles, Autopoles or other uprights for use as a crossbar. 
The clamp is made of lightweight cast alloy and will mount to pipe or truss poles up to 2.1"/ 52.5mm in diameter.