Strong, rust-resistant aluminum construction. Features durable, non-skid treads. Adjusts up to five feet in length, locking securely into place with snap buttons. U-shaped tracks for added safety. Three section design makes it easy to carry and includes a convenient bag, which easily hangs over wheelchair handles. 7" wide, adjust up to 5'long. One pair per package. Weight capacity 200 lbs. per ramp.