Top wing tree. Plated 4130 Chrome Moly. 1" adjustment holes, with a total of 6" of adjustment. "X" design for lateral and horizontal strength. Adjuster pins not included. TECHNICAL SPECS: Width At Top: 26" Width At Bottom: Min: 25 3/4". Max: 26 1/2" Height: Min: 18". Max: 24". Material: 4130 Chrome Moly Upright Diameter: 3/4" Upright Wall Thinkness: .060 "X" Diameter: 3/4" "X" Wall Thickness: .060" Wing Slider Mount: 3/8" Wing Mounts (Bosses): 3/8" Finish: Plated Total weight: 3.75 lbs