The Summit Viper SS Climbing Treestand is a great sit-down/stand-up climbing gun and bowhunting stand. Summit lock construction allows for easy transport. High-quality welded aluminum construction; adjustable seat; cushioned armrests; padded climbing seat bar and backpack straps; full-body safety harness. Seat: 12'' x 18'' x 2''; backrest: 12'' x 20'' x 2''; platform: 20'' x 29''; inside climber frame: 20'' x 26-1/2''. Weight: 20 lbs. Maximum weight capacity: 300 lbs.