VEVOR Rubber Curb Ramp 3.7" Rise Height Sidewalk Curb Ramp, 10" Width 39.4" Length Driveway Ramp for Curb, 15T Heavy Duty Rubber Ramp for Forklifts, Trucks, Buses, Cars, Wheelchairs, Bikes

Yes, you can connect 2 or more rubber curb ramps together to make 1 long movable ramp, but If it is not bolt to the concrete, it will move and affect its lifespan.

It is not recommended to paint the product yourself.

No hardware needed. These pads are so thick and heavy that they don’t move. I wheeled a wheelchair over them from every angle and they did not move.

Because this 3.7-inch-high ramp is constructed from heavy-duty industrial rubber, its flexible material naturally conforms slightly to minor dip variations or shallow ground unevenness better than rigid plastic. However, for severe curb irregularities, gaps, or significant height drops, you can achieve a stable fit by leveling the underlying base with crushed gravel, asphalt patch, or outdoor shims before placing the ramp, or by modularly linking multiple ramp sections together.

While it doesn't mention installation difficulty, the product description notes it comes with screw grooves and expansion screws to permanently install the ramp.