This 2-blade bone-crushing Trophy Tip rear-deploying broadhead from New Archery Products packs a devastating 2 cutting diameter. The field-point accurate Killzone uses National Archery Product's unique spring-clip design which ensures your blades won't open in flight or in your quiverno O-rings or rubber bands. Manufacturer model #: 60-997. Bone-crushing Trophy Tip 2-blade rear-deploying broadhead Devastating 2 cutting diameter Unique spring-clip design Blades won't open in flight or in your quiver No O-rings or rubber bands