Wheelchair ramps make it possible for wheelchair users to access different parts of the home smoothly and easily. Aluminum threshold ramps are lightweight, yet durable. The rubber top and tread create a non-slip surface. Wheelchair ramps are great to use on sliding doors as well, because they do not block the track. Most ramps can hold up to 700 pounds and have handles that make them easy to transport. EZ-Access mobility ramps are built with a top lip extension, which increases the lip height from three inches to nine inches. This makes it much easier to roll a wheelchair over the bumper of a car and into the trunk.