Pro-File TR Custom ski runners are universal fit to flat bottom skis such as steel leaf spring ski shown. They can also be fit to IFS plastic skis that are flat [NOT ARCHED] on bottom of keel. Runners have 6” carbide brazed in and include steel strips to extend front of runner as needed to fit the ski. Customer must supply studs & nuts then fit and weld components as needed. Sold per set of two. Come with 2” x 5” plates.