Blizzard Sheeva Twin Junior Snow Skis with Marker FDT bindingsBlizzard Sheeva Twin is a great ski for junior is sees the mountain as one big playground. Twin shape allows for switch riding, jumping and just having a blast anywhere on the hill. Dimensions = 99 72 90 mm Sidecut radius = 12 meters (138 cm size)This package includes the Marker FDT 4. 5 or 7. 5 binding system. This binding can be adjusted to fit boots up to 330 mm long. 4. 5 FDT Din range is . 5 to 4. 5 7. 0 FDT Din range is 2 to 7. 0Thanks for