Great for people with limited mobility, this slip-resistant outdoor step makes it safer and easier to step in and out of doorways. Approx. 4 inches high, it turns one larger step into two more manageable steps and has an extra-large, rubber coated, slip-resistant platform for added stability. Weather-resistant with drainage holes to keep away moisture. Supports up to 440-lbs. Plastic. 19 3/4"L x 16"W x 4"H.