Yes4All Premium Surf Balance Board...

From the manufacturer

IMPROVE BALANCE, ENHANCE SKILLS, BUILD STRENGTH & MASTER CONTROL OF YOUR BODY: Premium Balance Board Trainer helps you improve core strength, balance, coordination, train strength, train muscle memory, and stamina; You can train balance, tricks and movements without the waves, great to build better balance for boardsports like Surfing, Snowboarding, Skiing, Skateboarding, Standup Paddle, etc; Besides, you can use this Balance Board Surf to master control of your body, improve performance in sports like Basketball, Hockey, Golf, Baseball, etc
MORE CHALLENGING WITH REMOVABLE STOPPERS, THE ONLY LIMIT IS YOUR IMAGINATION: This Surfing Balance Board is fully equipped with 2 Removable Stoppers, 4 Screws to help you adjust the distance for your preferred level; For beginners, there are 3 different distances for you to practice and switch between different levels: 11, 16, and 22 inches; For advanced riders, the stops can easily be removed for full freedom and no boundaries; This allows for more tricks and more progression than any other balance board on the market
PREMIUM CONSTRUCTION & ULTIMATE COMFORT WITH SPECIAL PEVA GRIP: Premium Surf Balance Board is made of 15-ply pressed premium wood, support up to 350lbs; Special antiskid peva grip on the surface provides better grip and cool comfort, safe and comfortable to use with or without shoes; Doesn’t scratch you or your floors like griptape or sandpaper you see on other balance boards
WELL-BUILT & EASY-GLIDE WOODEN ROLLER: Unique to any on the market, solid construction with a thick TPE layer, the roller slides easily, smoothly and does not damage the floor; The antislip roller works great on different types of flooring, including wood, carpet, cork, concrete and more