Drive Socket with Allen Wrench Replaces Vitamix Vita-Mix Blender Part 891 and 802， 9 kits<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>9 drive socket kits with allen wrench included</li><li>Compatible with most Vitamix Blender models</li><li>Suggest to replace for every 3 - 4 months</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41zvGXWgZ-L.jpg" noproxy>