DJI Phantom 3 Standard Gimbal Yaw + Roll Arm Combo (Free screws and Screwdriver) Replacement DIY KIT Aerometal CNC Manufactured (OEM) For DJI Phantom 3 Standard Model Yaw Arm +Roll Arm Replacement HRC55 Surface-anodized Aerometal Aluminum (Al-Mg-Si Alloy offers perfect hardness.) CNC Manufactured Made in USA Free Screws and T6 Torx screwdriver Light Weight 8g, Easy Installation