EZ-Access Modular Entry Aluminum Ramp. This is For a 4″ Rise. You can use this as a 1″, 2″, 3″, 4″“ rise — you can choose what height you are needing 5 Piece Weight capacity: 700 lbs. Good condition They slide together/apart EZ One small screw is used to keep each in place from sliding. I don’t have all the screws but I will send at least one with each set for ID purposes.