Ideal for sliding doors (two ramps shown) Modular design features an adjustable top flap SPECIFICATIONS THRESH 1 THRESH 1.5 THRESH 2 THRESH 3 THRESH 4 THRESH 5 THRESH 6 Made of aluminum s s s s s s s Non-skid surface s s s s s s s Usable size (H x L x W) 1 " x 6Խ " x 34 " 1 " x 9ݽ " x 34 " 2 " x 12 " x 34 " 3 " x 17 " x 34 " 4 " x 22 " x 34 " 5 " x 27 ܽ " x 34 " 6 " x 32" x 34 " Weight (lbs.) * 3 5 5޽ 8 11 15 20 Weight capacity (lbs.) 600 600 600 600 600 600 600 For wheelchairs & scooters s s s s s s s Usage guidelines " - 1޼ " rise 1 " - 1 ܾ " rise 1 " - 2޼ " rise 2 " - 3޼ " rise 3 " - 4޼ " rise 4 " - 5޼ " rise 5 " - 6޼ " rise > Weights are approximate and may vary. Consult your equipments owner guide for proper degree of incline. Never exceed its recommendations. > UPS Shippable