Includes (2) 586405-00SV WashersNew, Bulk PackedGenuine OEM Replacement Part # 586405-00SV-2PKConsult owners manual for proper part number identification and proper installationPlease refer to list for compatibilityCompatible with the following: Black and Decker: MS1000 Sander, MS700BA Sander, MS700GB Sander, MS700 Sander, RO600 Sander, RO600 Sander, RO600K Sander, 11666 Sander, 11682 Sander, 11684 Multi Sander, 11681 Multi Sander