Door stoppers for bottom of door are suitable for wooden doors, glass doors, heavy industrial doors, and also suitable for floors of different materials, such as wood,  ceramic tiles, stone, asphalt and ceramic floors. The design at the bottom even works on rough or Provides excellent bite and grip on uneven surfaces. The Metal door stopper wedge can be used in homes, church, dormitory, offices, classrooms, etc.SpecificationDoor stop material: Stainless SteelMaximum diameter: 34mm/ 1.3 inchCylinder diameter: 42mm/ 1.6 inchHeight: 46mm/ 1.81 inchAdvantageDoor wedge made of Stainless Steel, these doorstops help protect hardwood and laminate flooring from scratches and dents, are durable and resistant to deformation, and can grip the ground well to provide optimal friction. The door stop won't move and keeps the door stable. It's also very safe. Prevents the door from closing on its own, so you don’t have to worry about being frightened by the door being closed in strong winds.2 installation methods : 1.Self-adhesive floor door stops;  2. Door Stop Wedge Screw Install:NOTE: Please note that the bottom of the door stop and door bottom are suitable.