The qualities of leather combined with the lightness of synthetic material: no more hassle of conditioning leather, a simple rinse under running water or in the washing machine, and your hunting collar is as good as new. The open buckle system allows for easy and seamless assembly. Biotack®: A patented product by T.DE.T., featuring the same soft feel as leather, the same profile, and the same color! Size Pony: 127 cm per rein. Size Horse: 145 cm per rein. Brass fittings.