The Mathews Top Hat tuning kit is a set of 12 cam spacers that allows you to adjust cam spacing. Each spacer has indication marks and sets are marked with reference lines around the Top Hat systems. Use the reference lines to match each set. Single and double line spacers will be used on the same cam in each set.
The Top Hat tuning kit is designed for Mathews V3, V3X, Halon series, TRX series, Triax, Vertix, Traverse, TX-5, VXR series, V3 series, V3X series and Phase 4 series.