[Wide Application] these door stops are perfect for home, office, school, restaurant, as well as industrial/commercial use, prevent scratching wall and door. [Multi Surface] These door wedges will stop your door from moving. Use though they can fit perfectly at home, offices as well. [CLASSIC DESIGN THAT ENSURES TIGHT FIT ] Anti-slip base combined with a strong and flexible rubber allows you to tuck them real tight under the door [Door Wedge Quality] making from non-toxic high quality Rubber.Which helps protect hardwood and laminate floors from scratches and dents. [Door wedge size] Door wedge measures 4.2x2.1x1.2 inches,which is small and can hold many doors. Please note: these door stoppers have a front tip so they will not work for very small clearances below 0.3" Mounting typeFloor Mount MaterialRubber ColourBlack StyleClassic,Heavy Duty,Industrial,Wedge,Wedges Finish typeMatte Number of pieces4.Items from Sheng Xinshun's shop