XCMAN Surf Balance Board Trainer with Adjustable Stoppers - 3 Different Distance Options 9.45, 15.7, and 22 inches.Bamboo Balance Board for Surfing, Snowboarding, Skiing, Skateboarding Training.Step up your balance game. COMPACT SIZE, USE ANYWHERE: The bamboo balance board can be used on any surface, and is easy to transport anywhere. Used to improve balance skills in Snowboarding, Skateboarding, Wakeboarding, Surfing, and training for Fitness, Hockey, Martial Arts, Skiing, Golf, Yoga and general sports training.