These stair treads feature a rich, modern color palette and a very detailed design. Durable non-slip rubber backing which does not require rug gripper, comfortable surface that provides an anti-fatigue feature. They won't move and they are also simple and easy to remove as well with no sticky residue left behind. When accidentally touched the mimeograph Paint or soup, etc., Wash it immediately to ensure clean and prevent producing a peculiar smell. Note: as the shooting light, angle, and color displays, physical and photos may be a little difference in color and 4% error in size.