Easy to install and replace: Our blender coupler and wrench make it simple to manually remove and service your blender tools. Safe and reliable: Made of high-quality plastic and metal materials, our couplers are wear-resistant and durable, ensuring long-term and effective performance. Convenient usage steps: Simply turn off the power, pry up the old coupling with a screwdriver, wipe the threads, and tighten the new coupling counterclockwise. Practical and convenient: When your blender joint becomes loose or weak, our coupler compatible wrench set allows for easy replacement, saving you time and effort. Wide compatibility: Our couplers fit KSB5 KSB3 and various replacement part numbers, including 9704230, WP970430vp, WP9704230, AP2930430, and more. Item Name: Blender Coupler Material: ABS, Metal Function: Transmission Wheel Usage: Manual Accessory Types: Soy Milk/Mixing/Grinder Accessories Features: Replacement Part, Perfect Fit, Professional Size Details: Length: 3.5cm/1.38" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2pcs: 2 x Blender Couplers 1 x Spanner or 3pcs: 3 x Blender Couplers 1 x Spanner or 4pcs: 4 x Blender Couplers 1 x Spanner