It is made up of polished finish 316-grade stainless steel, great for sailing, boating, mount in any position, even overhead for Space Saver. Mount easily to drywall, wood, or metal, can be mounted horizontally, vertically, or Overhead. The Vinyl rubber insert holds the rod in position securely, and the nylon locking ring rotates for protection and slides to open for quick removal. It’s portable and easy to install and you can install it where you want to, can mount easily to drywall, and can mount in any position. Dimensions: Diameter: 1.56 inches (39.5 mm), Width: 2.40 Inches (61.0 mm). Package Includes 1 set of Marine City 316 Grade Stainless Steel Single Fishing Rod Storage Rack ( 1 male & 1 female).