傳統板手因為現在市面尺寸太多種，導致市面上的板手尺寸非常多也影響到使用上的不便，Double U以簡單的方式更換，也能省去不少面積及收納空間。

Traditional board hand because there are too many sizes on the market, resulting in the market plate hand size is very much also affected by the inconvenience of use, double u in a simple way to replace, but also can save a lot of area and storage space.