The Smackdown 3/8 in. Rod Holder Bases give anglers a rugged and adaptable mounting option for crappie, catfish, and multi-rod trolling setups. Made from black anodized aluminum, each base features a right-hand 3/8 in. thread that fits all Smackdown Crappie Rod Holders. Multiple angle options-23deg, 55deg, and 90deg-allow anglers to match the base style to their specific boat brand and rail system. The 23deg base fits Sea Ark boats exclusively, while the 55deg and 90deg bases are compatible with popular models from War Eagle, Lowe, Lund, Ambush, Alweld, Ranger, Excel, Tracker, and Polar Kraft. The narrow flat rail mount creates a secure and space-efficient fit, giving your setup a clean, professional look that keeps rods stable and accessible.Black anodized aluminum base with right-hand 3/8 in. thread fits Smackdown Crappie Rod Holder (FishUSA SKU: 265424)23deg base fits Sea Ark boats exclusively55deg and 90deg bases fit major boat brands including Sea Ark, War Eagle, Lowe, Lund, Ambush, Alweld, Ranger, Excel, Tracker, and Polar KraftNarrow flat rail mount fits slim rail profiles for secure installationNote: Does not fit the regular 1/2' thread rod holders