The ARRI L2.0005320 X-Fly Friction Pantograph comes completely factory assembled with 5/8" adapters at the top and bottom. A double scissors mechanism provides additional stability for loads of up to 40 lbs (18.14 kg) using optional counter balance springs.
With the patented built in friction brake and its colored notched ring, you are able to adjust the friction to ensure the load will float once set into position, but will move smoothly up and down as required.