New Archery Products Spitfire Expandable Broadhead - 3 Pack - Renown NAP durability ensures that the Spitfire will stand up under the toughest conditions. The practice blades mean you can save your super-sharp blades for the big day.Patented micro grooved ferrule greatly increases flight accuracy and penetration power. No other broadhead in the world flies as true as the Spitfire, period. Diamize Sharpened Blades Cutting Diameter: 1-1/2in 3 Blades Quantity Per Pack: 3