Item Type: RC motor shaft Material: Stainless steel Gross Weight: 56g / 2.0oz Color: Silver Length: 53mm / 2.1in Diameter: 4mm / 0.2in Applicable: For model aircraft, remote control car, boatPackage List 10 x RC Motor Shaft1Installation Size: The diameter of the RC car round rod motor shaft is 4mm, the length is 53mm, suitable for brushless motor. You can choose according to size. 2Stainless Steel: The motor shaft is made of stainless steel, which is durable, resistant to high temperature and has greatly extends its service life. 3Exquisite Workmanship: Stainless steel motor shaft has exquisite processing technology makes it glossy and uneasy to fade. Silver appearance, good looking and practical. 4Applications: Slippery surfaces of motor shaft for easy install. Suitable replacement shaft for your motor. Applicable for model aircraft, remote control car, boat. 5Ideal Replacement: A total of 10 motor shafts, easy to install, directly replace the original damaged motor shaft, with reliable performance.