Playground rubber tile, rubber flooring, they are flexiblity, strong, absorb shake, colorful, anti-slip, etc. Can well protect people, children. Color can be red, green, yellow, blue, grey, black etc. Thickness can be 10mm, 25mm, 45mm, 55mm, or any other thickness as your need. Size can be 500x500, 1000x1000 etc.