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 hardware Constructed out of aluminum-grade 6061 alloys with stainless steel Type-304 screws Includes an injection-molded nylon cap 3-year limited warranty Specifications:Finish: Powder coated, misty silverThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)