Feature 1Marine grade 316 stainless steel, rustresistant, reusable and more durable. 2Mirror polished surface, smooth and burrfree, suitable for all kinds of boat. 360 degree round tube base, direct replacement for the old or broken one. 4Simple installation, no complicated tools required, convenient to use. 5Conform to strict quality control standards, dependable to use.Condition: 100% Brand NewItem Type: Round Tube BaseMaterial: 316 Stainless Steel Color: SilverOptional Inner Diameter: Approx. 22mm/0.9in, 25mm/1inAngle: 60 Degree .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Round Tube BaseNotePleasekindlyleaveusaNOTEspecifyingyourfavoriteInnerDiameterotherwisewewillsenditinRandom.