Four-fingers linkage can be efficiently used to control the buttons so that you can shoot while moving and act quickly, having a good experience in mobile games. Speed up in 4th gear: 8 times / s in 1st gear, 16 times / s in 2nd gear, 24 times / s in 3rd gear and 36 times / s in 4th gear Suitable for a variety of mobile games Suitable for all kinds of mobile phones Capacitor rubber pad, no damage to the screen, more sensitive signal conduction colour: gradient color Material: ABS+metal Size: 55x65x25mm Package Contents: 2 x Gaming Trigger Only the above package content, other products are not included. Note: Light shooting 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.