This steel wired automatic crawler is specially designed for 1/10 RC rock crawler. Completely the performance of real and give you a more enjoyable experience. and high . Make your RC car more cool and attractive. This offers ultra scale looks, superior and craftsmanship. It winds up or out of the wire cable, allowing you to tow objects or another RC car stuck in the mud. Item name: Steel Wired Automatic Simulated with Switch Voltage: 6-7.2V Load limits: Dead lift 3kg Length: 6.5cm Width: 2.7cm Height: 2cm Weight: 54g Use:Vehicles and Remote Control Toys RC Parts and Accs:Connectors/Wiring Upgrade Parts/Accessories:Frame Remote Control Peripherals/Devices:RC Car Traction Metal Four-wheel Drive :Assemblage Tool Supplies:Assembled For Vehicle Type: Material: Metal colour:Black + red Package Contents: 1 * Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.