Technical Specifications: The SPT Lockable Tie Down has been designed to secure up to three shortboards or two longboards to any roof rack system and has been constructed using the following: • 33mm U.V stabilized webbing • 2 x hardened stainless steel cables • Soft Santoprene protective casing • Polished die cast buckle • Weather resistant lock with dust shutter • 2.5m strap Other Uses - Racing Ski's, Rowing sculls, paddle boards, Windsurfers, bikes, luggage