Preethi Motor Coupler for Eco Twin, Eco Plus and Blue Leaf Mixers Compatible with Preethi Eco Plus, Preethi Chef Pro Plus, Preethi Eco Chef, Preethi Eco Twin, Preethi Blue Leaf and more Easy to Replace Original Preethi Product Fits well with Preethi Eco Twin, Eco Plus, Chef Pro Motor Coupler is the small circular part with teeth that sits on top of the Motor