The "Flow" balance board consists of a 9-ply concave maple deck with a sexy hour-glass figure that makes it hard not to pick up and ride. The Flow is complete with an injection molded rail system, STS deck-top traction surface, and a solid hardwood tapered rock. This responsive board provides a soulful, fluid ride. The narrow, twin-tip deck and steep rock taper allow for quick transfers of rotational energy from hips to legs to board. The low impact ride is great for full body conditioning and will have you carving around the competition.