Perfectly Protect the Controller: The controller grips prevent the controllers from accidentally slipping out during gameplay and protect the touch controllers from scratches and dirt. And the nested frill design ensures a secure hold during gameplay. Solve the Trouble of Battery Replacement: The battery door structure facilitates the replacement of the battery in mere seconds, allowing you to easily replace the battery without removing the entire controller grips. Comfort Grips: The controller grips are made of dependable silicone material, ensuring that the controllers are held comfortably for extended gaming sessions. Stay in Sync: The innovative translucent silicone combined with strategically placed reserved holes ensures seamless and continuous transmission of tracking signals. Functional and Stable Grip: Increase the binding force by using a proven texture. The original wrist strap can be accommodated by the hole located underneath.