The Manfrotto Autopole system"s unique designed is great for studio and location work alike. Designed to stretch between two points such as wall to wall, these will securely lock in place for many uses. Great for attaching lights and clamps or used as a background stand, these are sure to become a favorite. Color: black; material: aluminum; maximum extension: 66.93 in.; minimum extension: 39.37 in.; pole diameter: 45.40mm tube; weight: 4.19 lbs.