Welcome to the store! 1. Material: RC helicopter servo uses plastic material, steering gear material is steel, durable, not easy to wear, long service life. 2. Exquisite Workmanship: Professional manufacturing and exquisite workmanship, for WLtoys XK K110 regular steering gear is 1.9g, for K110S regular steering gear is 2g, accessory steering gear is modified and upgraded version, after purchase you can upgrade to K110S metal steering gear version. 3. Compatibility: RC helicopter servo suitable for WLtoys XK K110, K110S RC aircraft, can perfectly adapt to your remote control aircraft. 4. Complete Accessories: The kit includes steering gear, steering gear arm, screw, sponge pad, steering gear press plate, steering gear assembly. 5. Remote Control Helicopter Accessories: The kit can improve the overall performance of the remote control helicopter, is an excellent remote control helicopter accessory. Item Type: RC Helicopter Servo Set Weight: Approx. 30g / 1.1oz Material: Plastic Steering Gear Material: Steel Applicable: For WLtoys XK K110 K110S Remote Control Helicopter 3 x Steering Gear 3 x Steering Gear Arm 3 x Screw 2 x Sponge Pad 1 x Steering Gear Press Plate 1 x Steering Gear Assembly Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!