Item Type: RC Motor Shaft Material: Stainless steel Gross Weight: 47g/1.7oz Color: Silver Length: 44mm/1.7in Diameter: 4mm/0.16in Applicable: For model aircraft, remote control car, boat Package List 10 x RC Motor Shaft 1Applicable: The diameter of RC motor rod axle shaft is 4mm, which is suitable for brushless motor for model aircraft RC car and RC boat. 2Premium Stainless Steel: The RC car motor shaft is made of premium stainless steel which is high temperature resistant and it can greatly extend the service life. 3Exquisite Processing Technology: The RC brushless motor shaft adopts exquisite processing technology to make it shiny and not easy to fade. 4Glossy Surface: The stainless steel RC motor rod axle has a glossy surface and is easy to install and you can install it by yourself. 5Durable: This RC brushless motor shaft is perfect replacement for your old motor shaft which is durable and has good performance.