New HEAD ski boot instep  right boot adjustable length dimensions length 4 5/8 in (119mm) to 5 in  (127mm ) inside width at tip of buckle 9/16 in (14mm ) this model has a 4 hole mounting for more adjustments hole separation 1 5/8 in (135mm) rail length 1 3/4 in (45mm) these will work with other brands of boots,  free shipping in the US no international shipping