The Extreme Max Nitrogen Bottle Storage Brackets provide a safe way to store and haul your nitrogen bottles vertically inside your enclosed trailer. The brackets mount directly to your trailer's wall studs. From there, simply slide your nitrogen bottles into the brackets, strap them in, and be on your way without any worry about your bottles toppling over. Each bracket includes predrilled mounting holes spaced at 16" to align with standard trailer wall stud patterns. Includes two brackets for a complete, secure hold.