Description: Flush mount, oval shape flange, 30 degree With UV resistant black rubber cap and liner 9" deep tube 1-9/16" inside diameter 1/4" 316 stainless steel pin inside, the pin across the bottom that keeps the rod from rotating Professional marine grade cast 316 stainless steel Strong corrosion resistance and durable in saltwater circumstance High polished surface for mirror-like appearance and to match modern watercraft/boat/yacht Specification: Material: 316 Stainless steel Length: Approx. 9 inch/230 mm Color: Silver Package Includes: 3 Pieces Boat Fishing Rod Holder (with mounting screws) Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!