The O'Brien Junior Siege is great for kids who are learning to ski as well as little rippers who are already tearing up the course. The Jr. Siege offers a performance flex with more rocker for smooth, forgiving turns. Modified bevels allow easier turns, while the full concave delivers more speed out of the turns. Adjustable A.R.C. fin with forward and backward adjustment. Pro Wing foil not included. Full concave for more speed Modified bevels allow easier turns | Jr. Siege Slalom Waterski, Blank size 59