General description The Blender Replacement Parts are designed for 600W, 900W, and PRO series blenders. These extractor blades are essential for maintaining optimal performance, especially if your blender is leaking or making excessive noise. It is recommended to replace the blade unit every 6 months to ensure smooth operation. Technical specifications Compatible with 600W series: -101S 600W, -101B 600W MAX, NBR-1201 600W, NBR-0601600W, -WL088-23, -WL007-02 Compatible with 900W series: -201 900W, NB9-1301 900W, NB9-1301S 900W, NB9-1501 900W, -BX281B-23, NB9-0507, NB9-1301RG, NB9-0901, -BX177F-02 Material: Food Grade Plastic and High-Strength Stainless Steel Blade design: 6-Fin Blades for quick processing of vegetables, fruits, smoothies, and cold drinks Measurement allowed error: +/- 1-3cm Compatibility and accessories Includes 1 Extraction Blade Includes 1 x 32 oz big cup Includes 1 x 24 oz big cup Includes 2 pcs Rubber Gasket for a complete seal Includes 1 Flip Top Cover Includes 1