This 3D Hall Effect joysticks is for , Elite Series 2 Controller only. Not for any other one controllers. The hall effect joysticks solve joystick drift issues,restoring precise control. Long-Lasting Durability: Extensive lifespan testing of 10 million press cycles at high speeds of 10-15 cycles per minute without load. The reliability and durability of these hall effect joysticks to outperform standard potentiometer joysticks. Hall Sensor Technology: State-of-the-art Hall effect sensors instead of potentiometers track joystick position without physical contact for smooth, frictionless movement and zero mechanical wear over time. Hign-concerned Chemical:None Accessories Type:Button Model Number:for ONE Joysticks Compatible Model:for One Compatibel with:for ONE Elite 2 Analog Joysticks Colour:As Shown Material:Plastic Package Contents: 20 * Hall Effect Motor Ring 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.