[Fit for various rises]: Compared with door ramps of a fixed height in the market, our threshold ramp offers adjustability 2.0" to 8.0" rise. Accommodating various thresholds and step heights, much more easier to level and set the right height to match the ramp rise. [Reliable doorway transition ramp]: The door threshold ramp is made of heavy duty alloy iron, thickened step panel with four bottom crossbeams, self weight up to 32lbs. The doorway ramp is strong to withstand max 800lbs loading, can basically meet the needs of our daily life. [Detail-oriented door ramp]: The bottom & top of the threshold ramp front side is 8° curved design, make it more in line with ground. There are two pre-drilled holes on its top, include two expansion screws to secure for safer use. Fully welded all parts then polished smooth. [Multipurpose door threshold ramp]: 33.5" in length and 31.7" in width, it's wider and loneger than most door ramps in the market. Will accommodate wheelchairs, scooter, walker for elderly mobility, carts and buggies. A small investment will make a big difference for family members. [Easy to use door threshold ramp]: The door ramp is with non-slip treatment to surface, we also include four self adhesive antislip strips. The door ramp could be used directly without need to assemble. Integrated design makes the door ramp easily move from one place to another. front door ramp 2 3 4 5 6 7 8inch rise threshold for bike moving wheelchair walker scooter elderly