This is the 2:1 base plate on wheels, made with industrial-quality ball-bearings with a solid rubber surface. The base plates are white coated, 19mm thick MDF with a natural edge. Due to the longer self-supporting floor, the 2:1 rolling plate is not as strong as our 1:1 rolling plate. The anti-slip pads set are included with your order - you can also use these to firmly secure our modules to the plate on wheels. The material is milled off on the sides so that the rolling plate can be clamped to the modules.