Easton 4mm Avance Sport Shafts E1451800. It?s also a great solution for field shooters looking for sheer speed and forgiveness in unmarked distance competition. Specifications for Easton 4mm Avance Sport Shafts E1451800: Manufacturer: Easton Color: Black Additional Features: 1800 Features of Easton 4mm Avance Sport Shafts: The Avance Sport Has +/- .005? Straightness. Compatible With Easton?s Line of Precision Package Contents: Easton 4mm Avance Sport Shafts