Amazon.com : Vew-Do Surf 33 Balance Board Trainer with Advanced-Level Solid Maple Wood Roller (Surf Training / Extreme Sports Conditioning) - Includes Patented I-Beam Rail and Long Deck with Full 360º Rotation
Amazon.com : Flowboard – The Snowboard Training Tool for Jibs and Rails – 38” Long X 8” High – Durable and Strong : Sports & Outdoors
Making a balance board! (Rail to rail tool to keep surfing in quarantine) - YouTube