General description The 12Pcs Heavy Duty Solid Rigid Door Stops are designed to protect your walls and doors from damage while providing a comfortable home environment. The combination of a hard zinc alloy body and soft rubber tips effectively reduces the sound of slamming doors, making them an essential addition to any household. Technical specifications Material: Zinc Alloy Color: White Base diameter: 2.5 cm Length: 2-7/8 inches Package Contents: 12 Door Stops Measurement allowed error: +/- 1-3 cm Installation Installation takes no more than 1-3 minutes. Simply mark a spot, remove the screw, and place the door stop in the right position. Tools required: Drill and screwdriver.