No cheap plastic here: the Race Ramps pro-stop is made from Recycled semi-truck tires and grips like a tire to your floor. The Race Ramps pro-stop holds its place even on the smoothest floors, including swisstrax and other plastic flooring. You can easily link two or more pro-stops together to make a solid stop as wide as you'd like. Pre-drilled holes at the front of the pro-stop give you the option of permanently mounting it to the floor in your Garage or trailer.