Moderate soldering is required. Professional installation is highly recommended. Instructions and soldering tools are not included. Compatible with PS4 controllers, not suitable for other brands or models. The Hall electromagnetic joystick is made of high-quality wear-resistant materials and Hall sensors, providing improved accuracy, stability, and reliability. Helps fix drifting, broken, and loose joystick issues. Includes 4 Hall effect 3D simulation modules, 4 replacement joystick covers, and 1 screwdriver (styles may vary). Color: As shown in photo Material: Plastic Package Contents: 4 x 3D simulation modules 4 x replacement joystick covers 1 x screwdriver (style randomly selected, no specific requests accepted) Only the items listed above are included; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.