The Roll Control Scuba Tank Bungee Bracket is the perfect way to get your tanks to remain still. Easily prevent your tanks from rolling, shifting, and getting banged up during transport by locking them in place. Plastic cradle with straps and parts that interlock for tank storage racks. Perfect for boat decks as well as car or truck transportation. The Roll Control scuba tank mounts fit virtually every scuba cylinder as well, so you can transport your dive buddy's air tanks as well as your own. Don't risk missing out on a dive because your tank valve was damaged during a U-turn on your way to the dive boat!