Adjustable Height Ramp: Size: 34"W x 22.25"L x 4"H, We offer modules with heights of 1, 2, 3, 4, 5, 6 inches, so it's easy to add and remove interchangeable extensions according to your needs Modular entry ramp: Usable height range of 3.75"-4.25". An adjustable flap attaches to the top of the ramp can be attached or detached to achieve height adjustment for your different needs. 0.25" of additional height can be achieved. Wide Application:this portable threshold ramps designed for doorways, sliding glass doors, and raised landings, this ramp ensures a smooth and sturdy path for wheelchair, scooter, walker, or cane users Lightweight and High Load Capacity design: A high strength lightweight aluminum threshold ramp can support up to 800 lbs/ 360 kg.But its weight is only:14.3 LBS Safety First: For optimal safety, ensure the curb ramp surface is dry before use, and avoid using the ramp on wet, icy, or slippery surfaces. wheelchair ramp has pre-drilled holes on both the pivoting flap and foot section, allowing you to secure the threshold ramp to the ground using screws or pins for added stability. 1