【Adjustable Height】The height can be adjusted by loosening the hex screws to adapt to more height door gaps, and door gaps of 5-30mm can be used. 【Premium Material】Durable zinc alloy/304 stainless steel material, the door stop floor mount has high hardness and wear resistance, built to withstand daily scratches, more robust and durable than the metal door stop on the market. 【Adsorbable】Strong magnetic attraction, more stable to use quietly, suitable for a variety of spaces, bringing convenience to your life, it can also be installed on narrow door frames, making it suitable for a variety of doors, including heavy-duty doors. 【Installation Methods】Magnetic door stop installation kit includes double-sided tape, screws and anchors. Door stops for the bottom of the door are applicable to flat surfaces, such as porcelain tiles, metal, wood, glass. 【Dimensions】3.93 x 3.93 x 1.96 inches