TRIPLE X Sprintcar Top wing tree. Plated. 1" adjustment holes, with a total of 6" of adjustment. "X" design for lateral and horizontal strength. Our tubular top wing tree design has been stress tested in the most extreme environments (Knoxville, Williams Grove and Eldora). In every case, the high wing speeds of these tracks were no match for the strength and durability of our tubular top wing tree. Comes with internal sliders. Adjuster pins not included Width At Top: 26" Width At Bottom: Min: 25 3/4". Max: 26 1/2" Height: Min: 18". Max: 24". Material: 4130 Chrome Moly Wing Slider Mount: 3/8" Wing Mounts (Bosses): 3/8" Finish: Plated) Total weight: 3.75 lbs