2pcs 1/10 RC Car Aluminum Alloy Blue Front Knuckle for AXIAL SCX10 Arm Upright Steering SCX10 Metal Aluminum Front Knuckle Arm For vehicle type: Buggy, Car, Truck, Buggy, Rock Crawler, etc Power source: Electric Suitable for 1/11 model car, especially for rock crawler Lightweight upgrade instantly enhances overall performance in handling and durability