Magnus Black Hornet Ser-Razor Replacement Blade 4 Blade 150 gr. Specially designed for Black Hornet Ser Razor 150 Grain broadheads;Suitable for 2-blade and 4-blade models;Maintains high performance and accuracy;Includes three 100-grain main replacement blades;American-made with a Lifetime Guarantee;Recommended spin test after replacement for ensured true flight
