Gator Gator 3873 Backing Pad, For: 4-1/2 in Random Orbit Sanders, 4-1/2 in Dia, Zirconium Oxide $17.45EachChecking...Material: Zirconium OxideDiameter4-1/2 InMaterialZirconium OxideSuitable For4-1/2 In Random Orbit Sanders
