The Bosch Heavy-Duty Aluminum Elevator Tripod features a quick release tripod with a 2 section adjustable center column. The collet locks provide firm, easy locking action. The lightweight aluminum design is easy to transport and set up. The main elevator column is graduated in cmmm and ft/inches to provide precise changes in elevation of the instrument. ADDITIONAL SPECIFICATIONS: Head Type: Flat, Elevator; Clamping Style: Quick Clamp; Extended Height: 110 degrees Closed Height: 47"; THread Mount: 5/8" - 11; Weight: 16.0 lbs.