Spooner Boards The SpoonerPractice all your board moves (skateboarding, snowboarding, surfing) in a safe and fun environment. Users of all skill levels will experience the core workout they will get from The Spooner. This 360- pivoting exercise board is virtually unbreakable and is constructed from 3/8" polyethylene that will not harm gym floors. Use indoors or outdoors. 24"L x 11-1/2"W.