4 Rubber Vibration Isolator Mounts (1" Diameter x 1/2" Height) 1/4-20 x 3/4" Long Stud These mounts measure 1" in diameter (rubber diameter) and 1/2" in height (rubber height) Stud is 3/4" long with 1/4-20 female and male threads. Provides excellent noise and vibration reduction. Package Includes: 4 Rubber Vibration Isolator Mounts Can be used on/in: Water pumps ConstructionAutomobile Electronic components Medical equipmentHome applianceMechanical equipmentOffice facilitiesAviationAir compressorsDiesel enginesGasoline engines and may more applications