Description: Adjustable clamp-on and strong clamp with innovative smooth styling. Easilty mount without drilling hole in the boat Clamp fits any rail 3/4", 7/8" or 1" OD Attached 2 pieces rubber gasket, can grip the rail and prevent damage to the rail 360 degrees adjustable and locks at any angle Specification: Polished and mirror finish Material: 316 Stainless Steel Length: 230mm / 9 inch Diameter: 43mm / 1.7 inch Fits Rails: 19mm(3/4"), 22mm (7/8"), 25mm (1") Package Includes: 1 Piece Fishing Rod Holder 2 Pieces Gasket 1 Piece Allen Wrench