[Upgrade Your RC Car]: This 1/18,155mm chassis is designed to enhance the performance of your RC crawler car. It Is Easy to use and replace, making it a ideal choice for both beginners and experienced hobbyists. [Materials]: Wheelbase Assembled Frame made from premium materials plastic for durability and improved appearance. The steel frame rails and reinforced nylon axle housing long term use. [Stability Enhance]: The design lowers the center of forward, providing more stability to your RC crawler car. This makes it easier to control on different terrains. [Compatibility]: This RC Metal Chassis Frame is suitable for 1/18 RC crawler cars. Size Chart:Wheelbase:15.5cm/6.10inch Color: As shown Material: plastic Package Contents: 1 x rc upgrade parts kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.