PRIMAL DOUBLE VANTAGE DELUXE LADDER STAND 18 FT. The Primal Double Vantage Deluxe Ladder Stand Features the patented Back Bone Stabilizer Truss System for enhanced ladder strength and stability, the patented Grip Jaw System for maximum sure grip installation and safety, 37” x 15” flip up textilene seat with backrest, 20” wide ladders, rounded rectangular tubing, padded arm rests and adjustable shooting rail, as well as a 37” x 23” full foot platform.