C3yoyodesign top selling fingerspin model - Speedaholic FX! Official description: Top Performance for String Tricks and Fingerspins This high-end model, based on the Speedaholic XX, features a precision-machined polycarbonate body and a metal rim, excelling in both string tricks and fingerspins. The rim is made from A6061 alloy instead of the usual stainless steel, making it lighter and easier to control while still providing a strong feel. This design enhances the duration of fingerspins, ensuring a comfortable throw that doesn’t tire you out quickly. Depending on the color, the rim and center hub may have a blast finish. For fingerspin tricks, if you use your fingernails, a non-blasted (shiny) finish is recommended. If you support the yo-yo with your skin or have thicker fingers, a blasted (matte) finish is better. Note: The glow-in-the-dark option is phosphorescent and emits a faint glow in the dark, but it is significantly dimmer. Diameter: 56.83 mmWidth: 46.7 mmWeight: 66.4 gramsBearing Size: Size CResponse: 19mm SlimMaterial: CNC Polycarbonate w/ 6061 Rims/HubsAxle: 10mm Note: this is an unresponsive yoyo that requires a bind return