Topoint Spine 500,Fiberglass Shaft Arrows with Replaceable Arrowheads for Hunting Compound Bow/Recurve Bow Arrow Arrow Shaft Material: Fiberglass, Total Length is about 30". With Nock & Fletching Vanes,fits for Compound Bow and Recurve Bow. With Pointy Arrowheads that Can be Screw on or off,Replaceable. Application: Hunting,Archery Sport Target Shooting Practice. Be Careful: Safty Comes First, Make Sure No Body Arround Your Target Before Shooting. Anyway, Hope you have fun with it.