When you are playing phone game, it is not so convenient sometimes and easily lose the opportunity of being the winner.And you can use this assistant joystick to enjoy the game smoothly. The fixed silicone bottom is stable and not shifting, and more stable when play game. A necessity for mobile phone game. Features - Color: Silver. - Material: Copper, silicone. - Size: 1.00X1.00X0.95cm/0.39X0.39X0.37in - It is suitable for all phone or tablet games, and convenient to use. - It is a assistant tool for you or your friends, which can increase the chance to win. - It is made from good copper material and silicone with high conductivity for convenient use. - With a strong sensitivity, they are professional and practical for games. - The operation is simple. Just suck the screen, the button, and then you can operate it. Package list: 4 x pairs of phone game joysticks