Giant Doorstop Is Designed To Hold Heavy, Commercial And Industrial Doors And Doors With Automatic Closures Or Spring Closures And/Or Extra-High Clearances Up To 2". Large Footprint Grips Tightly And Stays In Place When Used On Rough Or Uneven Surfaces. Impact-Resistant Rubberized Material Stands Up To Daily Use. Highly Visible Color Helps Prevent Tripping In Small Spaces Or Doorways. Doorstop Will Not Mar Floors Or Carpets.