Stainless Steel Cutter Blade, Replacement for Vitamix Blender. Cut Blades Our hardened stainless-steel blades never require sharpening, and a double set of stainless-steel bearings increase the life of the blades and keep the blender running quieter longer. The blade is conveniently designed to be replaced quickly, on-site, with an existing compatible container. Fits standard household 64 and 32 oz containers, standard commercial 64, 48, and 32 oz containers. Does NOT fit household low-profile 64 or 48 oz container, commercial MP, XP, Advance or XL containers. Color: silver + black Material: metal + plastic MODEL NUMBER - for Vitamix Drive Socket Kit DURABLE & STRONG - The kit is made of premium material and strict tests had been performed for long lasting use. You don't need to worry about replacing it frequently, saving your time and the maintenance cost. COMPATIBLITY - The drive socket couples the motor to the blade assembly and protects the motor if the blade assembly is blocked from rotating. This replacement drive socket kit is not for use with the Vitamix XL. EASY TO INSTALL - It will take you about 10 minutes to replace the drive socket kit. DIY installation, full of accomplishment. Package Contents: 6 x Blade 6 x Drive Socket 6 x Hex wrench (Random Color Do not accept designation)