and many competitors switched to freestyle skiing on twin-tip skis. Today skiboards are available from brands such as Rvl8, Summit, Spruce Mountain, Bluemoris, K2, and Head. Skiboards and snowblades/skiblades are from about in length, with a parabolic shape like a snowboard, and a solid wood or foam core. Length and width are a function of rider weight, skiing style, and conditions. See also Dual Edge Snowboard Freeboard (skateboard) Monoski Noboard Ski Skateboard Skwal Snowboarding Snurfer Splitboard SSX Surfboard Teleboard References Further reading Hart, Lowell (1997). The Snowboard Book: A Guide for All Boarders. W.W. Norton & Company. . Sherman Poppen and the Snurfer External links Sliding vehicles Snowboarding Sports equipment