"O" Clamps

 
 

 

  "O" Clamps
Unlike "C" clamps which can mar poles, these round clamps let you hang lights and other fixtures without scratching the pole.
The V-221"O" (left) fits 1.5" poles.
The SP-511 (middle) fits 1.5" and 2" poles.
The SP-512 (right) fits 1" and 2" poles.