1/8" Rubber Gaskets/Spacers for Doors for C7 and C8 Locks (2x)

1/8″ -thick rubber gaskets/spacers to increase friction, absorb vibration, and increase a door's thickness for doors that are 1-1/2 inch thick or less for C7 and C8 locks. Each pair of these 1/8" -thick rubber spacers will add up to 1/4" to the thickness of the door. Can also be used to increase a door's thickness if the door is less than 1-3/8" -thick for C3 and C5 locks (but rubber showing around rosette will be greater as C3/C5 rosettes are about 1/2" smaller than C7/C8 rosettes' diameter.  Will also absorb rosette teeth of C3 and C5 locks when installed on doors that do not allow for the tiny teeth to bite into the door's surface (such as metal doors) to aid stability after installation. Outer diameter: 4-1/8" Inner diameter: 2-3/8"