Specification: Item Type: DIY arcade rocker accessories Material: Plastic, hardware Gross Weight: 680g / 24.0oz Application: home console DY arcade, shared arcade, fighting game console etc. PackageList: 2 x Ball Head 16 x 30 Button 4 x 24 Buttons 2 x Rocker Wire 20 x Button Connection Wire 2 x Joystick 2 x USB Joystick Chip 2 x USB Connection Cable 2 x GasketOWN USB CABLE: The encoder has its own USB cable, so it will not have any effect on other players. Let you have a better gaming experience. APPLICATIONS: Used for home console DIY arcade, shared arcade, fighting game console etc. Suitable for friends gathering, relative entertainment, nostalgia. DURABLE: The buttons are made of premium materials, resistant to high temperature and durable. Equipped with a dustproof gasket; the ball is removable and can be replaced with different balls. PRECISE DESIGN: The size design of the product itself has been carefully calculated to make the game experience smoother and at the same time reduce wear and prolong life. COMPLETE DIY PARTS KIT: Including ball head, 30 cassette buttons, 24 cassette buttons, rocker wire, button connection wire rocker, USB rocker chip, USB connection wire, gasket.