ShadeFin Mini Square Tube Rail MountThe ShadeFin Mini Square Rail Mount can be used on square rails from 1" to 1-1/2" outside diameter. The square rail mount's secure design can be mounted either vertically or horizontally, depending on preference.Features and Benefits:Includes mounting hardwareConstructed out of aluminum-grade 6061 alloys with stainless steel Type-304 screwsIncludes an injection-molded nylon cap3-year limited warrantySpecifications:Finish: Powder coated, misty silver