Features: Accuracy engineered with advanced machining, this 36/40 series motor mount ensures dimensional accuracy for seamless compatibility with CAT catamarans and brushless motors. Crafted from erosion resistant aluminum alloy, its reinforced structure delivers outstanding durability and shaking easy stability in demanding marine environments. Ideal for both marine enthusiasts and professional boat builders requiring stable mounting solution for performances electric propulsion systems. Optimizes power transfer efficiency during high speed navigation while maintaining secure motor positioning through rough and saltwater exposure. Features thermal managed design specifically engineered for brushless motor integration, enhancing overall electric watercrafts performances through improved heat dissipation and moment transmission. Specifications: Component : aluminum Size: about 46x56mm/1.81x2.2inch Package Includes: 1 set Motor Base Or 2 set Motor Base note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.