Two each 2ݔ Rubber Threshold ramps and one pair of Rubber Risers shown combined to create a maximum height of 4ޔ. SPECIFICATIONS THR 250-1 THR RISER 225-1PR THRBE 150-1 THRBE 250-1 Made of recycled rubber Օ Օ Non-skid surface Օ Օ Usable size (H x L x W) 2 " x 24 " x 48 " 2 ݼ " x 24 " x 24 " (2 each) 1 " x 14 " x 36 " 1ݽ x 25 Ԕ x 36 Overall size (H x L x W) 2Խ " x 24 " x 48 " 2 " x 24 " x 24 " (2 each) 1ܽ " x 14 " x 40 " 1 ݔ x 25 x 43 Ԕ Weight (lbs.) * 40 23 per riser (2 each)14 40 Weight capacity (lbs.) 850 850 850 850 For wheelchairs & scooters ݕ Օ Usage guidelines 2ս " rise ** Call customer service for details** 1 " rise 2ݽ rise > Weights are approximate and may vary. ** Optional components available to reach heights greater than 2Խ ". Call for details. Consult your equipments owner guide for proper degree of incline. Never exceed its recommendations. > Bariatric weight capacity = 800 lbs. or greater Bariatric width = 36Ҕ or greater UPS Shippable