Compatibility: The 3D Joysticks is for Ally RC71L/ for win3 10 handheld console. Not for other model. Please confirm your model before placing the order Application: The replacement for Ally RC71L joystick are apply to the problem of the drifting, blind spots, dead spots, can't center, damaged or broken, long time to use, not sensitive, etc. The joystick for win3 10 better to solve the problem of drifting Installation Suggestion: For Ally RC71L joystick to replace need to WELD, if do not have any installation experience, we suggest to find the professional to replace for Ally RC71L joystick. After replacing the RC71L joystick, if it show the problem of drifting not center, it means it need to manual calibrate Enhance Your Gaming: Perfect for gamers looking to improve their game control. Experience enhanced and smooth movement, making your gaming sessions more enjoyable and competitive The product printed words depending on the batch, but this does not affect use. Color:As Shown Material:plastic Package Contents: 2 * Joysticks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.