Reliable Accessibility: Easily navigate rises up to 4 inches with the durable rubber threshold ramp, designed for wheelchairs, scooters, and power chairs; Actual riser height is 4.3 inches, check door clearance for proper fit Heavy-Duty Construction: Supports up to 600 pounds with a solid rubber design that remains stable on uneven surfaces for increased safety and ease of use Non-Slip Textured Surface: Grooved rubber texture provides enhanced traction in all weather conditions; Ramp is great for indoor and outdoor use for doorways, garages, and curbs Integrated Cable Channels: Features 3 built-in channels on the underside to neatly route hoses, cables, and small wires without obstruction Convenient 1-Piece Design: Weighs approximately 45 pounds and is optimal for fixed placement use rather than frequent moves; Measures 24"L x 42"W with no assembly required Easily overcome rises up to 4" high in your wheelchair, scooter, or power chair with the Silver Spring Rubber Solid Threshold Ramp - perfect for use at home, at work, or anywhere mobility is an issue. Made with all-weather rubber, these threshold ramps are an ideal solution to navigate small rises throughout your home or office.