FITS GUNNELS AND RAILINGS MAXIMUM 2.5 THICK (6.35 CM): Leveling shelf fits various gunnel styles; ideal for jon boats, cartoppers, etc. As long as gunnel width is 6.35 cm or less; versatile for side-by-sides or vehicles; keeps personal effects organized. LONG LASTING DURABILITY: Built from 6061-aluminum alloy; light sand-textured powder coat; moulded PE rod and tool arms; machined HDPE top; EVA pads for hooks/lures; 1/2×13 NC stainless-steel jack screw and PE knob for fast, strong deployment. FULLY CUSTOMIZABLE FISHING STORAGE: Unique patent pending design clamps firmly over gunnel; ; extra 1/4×20 NC threaded inserts allow mounting of fish finders, GPS, or electronics; versatile design adapts to your storage needs.