Feature: 1. COMPATIBILITY: Specifically tailored for NB4 one handed remote controller, ensuring seamless integration and instant usability. The plug and play design simplifies the upgrade process, quickly enhancing the performance of the remote controller. 2. PRECISE CONTROL: Crafted with high performance engineering, the one handed control adapter ensures smooth and precise movement of the control stick, enhancing fine tuning capabilities for accurate response. It excels in both speed racing and complex terrain maneuvers. 3. ERGONOMIC DESIGN: Designed with the curve of the palm in mind, the shape of the control stick and the grip material of the transmitter steering wheel trigger reduces fatigue during extended use, improving the fit of the thumb and fingers for efficient and comfortable remote control using. 4. PERSONALIZED ADJUSTMENT FUNCTIONS: Equipped with adjustable tension screws, the one handed control adapter allows users to control the elasticity and damping of the control stick based on your preferences and control habits. This feature caters to individual players' needs for personalized control sensitivity. 5. LONG LASTING: Constructed from high strength alloy materials, the controller transmitter steering wheel trigger is resistant to daily impacts and wear, maintaining the accuracy of the control stick over the long term. Its durability ensures consistent performance even under rigorous and extended use. Specification: Item Type: Transmitter Steering Wheel Trigger Material: Alloy. Package List: 1 x Transmitter Steering Wheel Trigger1 x Screw