Product Description Specifications: Item Type: RC Accessories Part Voltage: 6-8.4v Max. RPM: 21000PRM Material: Aluminum Alloy / Plastic Optional Color:Black/Blue/Red Black Item Weight: Weight: Approx. 40g / 0.1lb Size: 38 * 38 * 20mm / 1.50 * 1.50 * 0.8inch Cable Length: Approx. 200mm/7.8in Features: 1.Small size and lightweight designed rc car cooling fan, convenient for you to install and remove. 3.This motor radiator is made of high quality material and exquisite workmanship, this cooling fan is durable. 4.Designed for RC model car 1/8scale rc car cooling fan wirh diameter of 40MM, such as 4028 brushless motor. 5.Perfect for 1/8 4WD SLEDGE MONSTER TRUCK 95076-4 Note : When installing, align the detent of the motor heat sink and tighten the fixing screw. It is very convenient to install without damage.