Incredibly strong and rigid, the Magma Crossover Single Firebox Dual Rail Mounts will not slip on the rail. Made of 18-8 stainless steel and 356 hard anodized aluminum, these mounts instantly detach without tools for compact storage, leaving no hardware on the rail. The quick-release clamp allows the grill to be rotated on the mount and easily mounted or removed.• For use with the Crossover Single Burner Firebox• Dual round rail mounts• Fits standard 7/8" dia. or 1" dia. rails Made of 18-8 stainless steel and hard anodized aluminum Instantly detach without tools leaving no hardware on the rail Fits standard 7/8" dia. or 1" dia. rails | Crossover Single Firebox Dual Round Rail Mounts, Standard 7/8" or 1" Rails