Matthews 30" x 36" Meat Axe Flag 169178 are rectangular frames with mounting pins attached. Used to control natural or artificial light. Can be used to protect the camera lens from flares, control spill light from other sources, or keep light from reaching an area on the set. 

The 72" arm is adjustable so it can pivot in all directions around the mounting clamp and will telescope in and out of the set. It has a 2-1/2" Grip Head on one end and a small handle on the other end for positioning.