Flush-mount, in-gunwale, 316L stainless steel rod holders features an extra large, fully-welded, low profile cap that will resist breakage and enhance the appearance of any boat. Tube depth of 9", 2"OD, 1 5/8" ID. White vinyl liner protects rods and is keyed to the 1/4"W x 1/2"H welded cast gimbal bar to prevent liner twist. One-year warranty.