APPLY TO - Doorstops are for indoors and outdoors. They are suited for sliding doors, glass doors, garage doors, barn doors, or heavy doors. Widely used in homes, offices, hotels, apartments, and commercial or industrial locations.Specification:Holder Base Size: 51mm(D) x 74mm(H) / 2.01"x 2.91"Strike Base Size: 51mm(D) x 12mmmm(h) / 2.01" x 0.47"Mounting Hole Diameter: 4mm/0.16"QUANTITY INCLUDED - 2 x 2.01"x 2.91" Door Magnetic Catch, Some Install PartsADVANTAGE - Rustproof and durable, stable construction, anti-corrosion, super suction; Can be mounted horizontally to the baseboard or wall.