Keep your RC boat running smoothly with this RCBB cooling jacket in black. Measuring 40x95mm, it is designed to fit perfectly and efficiently cool the motor during operation. Crafted specifically for boats, this cooling jacket is a must-have accessory for any RC boating enthusiast. It is made of high-quality materials to ensure durability and longevity. Ensure your boat's motor stays cool and running at optimal performance with this RCBB cooling jacket.