Moderate soldering is required. Professional installation is highly recommended. Instructions and soldering tools are not included. Compatible with PS4 controllers only—not suitable for other controllers or models. The Hall-effect joystick is made of wear-resistant materials and uses Hall sensors for improved accuracy, stability, and reliability. Helps resolve joystick drift, breakage, and looseness. Includes 4 Hall-effect 3D analog modules, 4 replacement joystick caps, and opening tools. Color: As shown in photo Material: Plastic Package Contents: - 4 × 3D analog modules - 4 × replacement joystick caps - 1 × screwdriver (style varies; no substitutions or specifications accepted) Note: This listing includes only the items listed above. Additional accessories are not included. Color appearance may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.