Materials: Silicone and TPU\r\nProduct Features：\r\n①Anti-dropping: The wrist strap and knuckle can prevent it from dropping during the games. And stop the battery cover from flying off during Beat Saber. \r\n②Non-slip: The texture of the covers increase friction, provide better grip and keep the sweat from building up. \r\n③Adjustable: You can adjust the length by the velcro on knuckle strap and adjustment buck on wrist strap to fit your hands to enjoy a more immersive gaming experience.\r\n④Prevent impact, scratches and stains: The protective cover provide the controller grip with protection against impact and scratching, while keeping the it clean.\r\n⑤Easy to Use:It only takes few steps to install. For specific guidance installation , please check the user instructions.\r\n \r\nInstructions:\r\nStep1: Open the battery tray and remove the original strap. Clip knuckle strap into the controller grip, and close the tray.\r\nStep2: Put the controller grip into the cover and lock the 2 ear buckles.\r\nStep3: Thread the string through the two holes. Then thread the adjustment buckle through the string and tighten the string to form a knot.\r\nStep4: Thread the rubber ring through the controller grip. Wear the straps and adjust the length of the wrist strap to fit your hands.\r\n \r\n \r\nPackage Included：\r\n2 x Touch Controller Grip Cover\r\n2 x Wrist Strap\r\n2 x Knuckle Strap\r\n2 x Cover of Joystick\r\n（Note: The touch controllers are not included）