Adjustable aluminum mount shoes allow you to widen or narrow, as well as, lengthen or shorten the overall stance of your snowmobile while also adding durability, strength and a precise ski alignment Wide ski tip allows great floatation and helps get the ski on plane quickly Short center keel and cut and raised tail allow for aggressive steering with light steering effort Mini rear keel helps straight line tracking Traction nubs add a no-slip platform for any ski-mounted riding Includes two skis, black loops and black mount shoes Uses Stud Boy USI 301 series carbide wear bars (sold separately) Made in the U.S.A.. SKI USI EPIC 1.0 BLACK PR