This universal ball-shaped knob is great for replacing worn-out joystick tops or adding a custom touch to your arcade machine. Simply unscrew the old knob and screw on the new one for an instant upgrade. Ideal for arcade enthusiasts, gamers, and DIY hobbyists, this knob ensures a comfortable grip and precise control during intense gaming sessions. Features -Color:Black -Material:Plastic Copper -Size:3.20X3.20X3.20cm/1.26X1.26X1.26in -Universal compatibility: this ballshaped knob is designed to fit various joysticks and controllers, making it a versatile replacement part for multiple devices -Comfortable grip: the ergonomic design ensures a comfortable grip, enhancing your gaming or operational experience by providing better control and precision -Durable material: made from plastic and copper materials, this knob is built to withstand longterm use without significant wear and tear, ensuring longevity -Easy installation: the knob features a simple installation process, allowing you to replace your old knob quickly and effortlessly without any special tools -8 mm thread fit: specifically designed to fit 8 mm diameter threads, this knob is great for a wide range of applications, ensuring a secure and stable attachment Package list: 1 handle ball