Ive got bison horns from that same guy on mr bays emporium that knappinman has bought from, hes sells singles and in lots of 10 or 25, come from a ranch in Montana, been real pleased with them, the longitudinal cracks that are being spoken of are the hair structures drying and opening up, keep that thing oiled well and should last many years, use a natural animal oil or soemthing with lanolin, did an experiment a couple years ago and tried using hair conditioner on a buff, didnt work for squat!