MF7041: This chrome three-section stand extends from 50.5 to 105 in. & weighs 12.5 lbs. This updated model is made with stronger legs, enhanced knobs & better plastic feet. MF7011: The Calumet 40" Extension Grip Arm is designed to hold flags, scrims & silks in front of lights. It also makes a nice boom for suspending small items over a set. MF7010: Silver version of the Calumet 2.5" grip head.