Magma Crossover Dual Round 78 or 1 Rail Mount T10-980 These Magma round rail mounts offers strength and balance, designed for use with the Crossover Single Firebox. Constructed from 18-8 stainless steel and 356 hard anodized aluminum for durability in harsh marine environments. These rail mounts need no tools are are able to instantly detach from the rail for compact storage and leaving no hardware on the rail. The quick release clamp allows the grill to be easily rotated to your desired setting