"The fixed jacket is stable and not shifting, and its more stable when playing game. Metal induction shooting, conductive metal, easy to install. Physical buttons, the game can not make cheating recognition. Lightweight and portable, support for shooting games. Recommended 4.5-6.5 inch mobile phone for Android and for iPhone. Description: Mobile phone design game auxiliary keys to bring you a better experience. The buttoned back clamp makes the auxiliary device more stable on the mobile device. Metal induction shooting, copper contact, the reaction is more sensitive, light press can achieve the effect Specifications: Material: Plastic Color: clear 1 x Pair of Shooting Game Triggers(Please confirm if your phone is suitable for it)"