Stainless Steel Cutter Blade Replacement for Vitamix Bl. Hardened stainless-steel blades never require sharpening. Double set of stainless-steel bearings extends blade life and reduces noise for quieter operation. Designed for quick and easy on-site replacement with compatible containers. Fits standard household 64 oz and 32 oz containers, and standard commercial 64 oz, 48 oz, and 32 oz containers. Does not fit new household low-profile 64 oz or 48 oz containers, or commercial MP, XP, Advance, or XL containers. Color: Silver + Black. Material: Metal + Plastic. Model number for Vitamix Drive Socket Kit. Durable and strong construction with premium materials for long-lasting performance. Reduces need for frequent replacements, saving time and maintenance costs. Drive socket couples the motor to the blade assembly and protects the motor if the blade assembly becomes blocked. Not compatible with Vitamix XL. Easy to install; replacement takes approximately 10 minutes. DIY installation provides a sense of accomplishment. Package includes: 1 x Blade, 1 x Drive Socket, 1 x Hex Wrench (random color). Only items listed are included; other products not included. Note: Lighting and display differences may cause slight variations in color between image and actual item. Measurement may vary by +/- 1-3 cm.