Mobile Game Triggers and Controllers are designed to strengthen your fighting capacity in the game. May be you are looking for a auxiliary neans to have a gaming experience, may be your hand will be shaky and or sweaty after long time playing. This set of mobile game accessories is your best choice. HOW TO USE THE GAME TRIGGERS? Start your game, and clicks the Settings-Control-Customize; Move the “FIRE” button to the top of left corner; Move the “AIM” button to the top of right corner; Adjust the shoot and aim buttons under the touchpad，of the cell phone game controller; “Save” your settings. Specifications: Lightweight and portable Stretchable and adjustable Cellphone max size is 6.5 inch Game handle not included Long using time Package Included: 1 pair of game triggers (left + right) Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understandings.