1、Premium Metal: This RC boat servo replacement is made of premium metal material, replacing the original plastic gear steering gear. 2、Perfect Fit: This black RC boat servo is 100 percents compatible, guaranteed to meet the specifications of your original equipment. 3、Practical: This RC boat upgrade part is practical that it helps you to repair the expensive equipment, in this way you can save more money. 4、Applicable Model: Our RC servo steering engine is applicable to for WL917 remote control boats and it is shipped with a screw and a steering gear arm. 5、Plastic Shell: This RC boat gear servo has a plastic shell that is durable and it is light weight that will not add too much extra weight to your boat. Item Type: RC Boat Gear Servo Material: Plastic, Metal Gross Weight: 9g/0.32oz Shell Material: Plastic Color: Black Application: For WL917 remote control ship 1 x RC Boat Gear Servo 1 x Screw 1 x Steering Gear Arm Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.