6 drive socket kits with allen wrench included This drive socket is compatible and will work with the Vitamix Blending Station, Drink Machine Two-Step, Drink Machine Two-Speed, and BarBoss Advance blenders Replaces Part # 891 and 802 A drive socket normally run 16 - 18 months. 6 replacement kits can keep your blender running for over a year This is an aftermarket part made to fit Vitamix This drive socket is compatible and will work with the Vitamix Blending Station, Drink Machine Two-Step, Drink Machine Two-Speed, and BarBoss Advance blenders. 6 drive socket kits with allen wrench included. Replaces Part # 891 and 802