100ctailor Easy-Step Door Stops, kickdown door stops 5-Inch, Satin Nickel with 3m gloves(L) Innovative, Easy Design Do not worry about the door closed. No bending down, No manual lifting, No dirty shoes! Sticks to all surfaces- hardwoods, concrete, tile, carpets. Please send three holes where you want to install the product. Do the advanced gloves of 3m in order to protect your hands the concrete pin at the time of installation. 5-minute installation is so easy to complete.