... ski: advantage: 1. High quality steel sled 2. Adjustable,folding steel Sled 3. Easy taking 4. customised model Ski: foldable sled, sled, snowboard ... , snow ski, snow board, ski board, sonw slide, kid skiing, ski for kid, ... folding steel SledAdvantage:1. Front and rear ski: strenthened HDPE ski board2. Ski board thickness: 4-15mm3. Steel pipe ...