Have this ramp bought to my bike (150 kg) to hiefen 4 House steps to the top. For this I took one of the two ramp parts, stuck with Tesa Power Tape addition, to prevent slipping on the ground firmly. With something I could start the bike to move up the ramp. They do not buckled while the punched holes produced a rough, non-slip surface. More than 4 normal levels are incidentally not possible since then is no longer sufficient, the length of the ramp.