Smooth Transition & 1 Channel Design: Our 3' rise ramp with channel design creates a smooth transition over any door, entryway, or uneven threshold surface. The reserved channel underneath allows cables to pass through without getting crushed or damaged by wheelchairs or scooter wheels. 3' Rise Beveled Edges: Size: 35.5' L x 18' W x 3' H/90.2 x 45.7 x 7.6 cm. Fit for maximizing 26.8'/68 cm width wheelchair to pass. The solid rubber ramp is built with beveled edges for a smooth approach to raising the surface from all sides. With this smart design, the threshold ramp is perfect for any door, entryway, or surface that requires an easy transition over an obstacle. Upgraded Non-slip Textured Surface: The door ramp for the wheelchair is a durable rubber construction, which is rust-proof and scratch-proof for indoor and outdoor usage. Using recycled natural rubber, it has no irritating odors