This motor heat sink is made from high quality aluminium, which is designed for 1/10 RC racing car with 36mm diameter motor. It is practical and durable for protecting the motor from overheating.<br><br>Features:<br>Aluminium alloy marterial, high quality and light weight<br>For 1/10 RC racing car, 36mm diameter motor<br>Easy to install<br><br>Specifications:<br>Material: aluminium<br>Suit for 1/10 HSP RC Car 540/550 3650 Motor<br>Color: blue and purple optional<br>Inside diameter: 35mm<br>Weight: 22g<br><br>Package Information:<br>Package Size: 5.4 * 2.8 * 2.7cm / 2.2 * 1.1 * 1.1in<br>Package Weight: 22g / 0.8oz<br>Adhesive tape package<br><br>Package List:<br>1 * 7012 Motor Heat Sink