The Zwickey No Mercy Single Bevel broadhead is designed to match the broadhead bevel to the wing of your feathers. This allows for maximum arrow rotation and penetration. Choose RIGHT WING BEVEL for right wing feathers, and LEFT WING BEVEL for left wing feathers. Like all Zwickey broadheads these are full strength, triple laminated, high carbon steel, individually heat treated to a bone busting blue temper. These broadheads fly great, penetrate well, and are easy to sharpen. The No Mercy Glue-On fits both 11/32" and 23/64" shafts, measures 2 1/2" x 1 3/16", and weighs 130 grains. Sold 3 per pack.