Fish-master Fishing Boat 3 Adjustable Foundation Swivel Rod Holder Bracket Plastic Spinning Fishing Tools with Screws Black MATERIALS AND SIZE:Constructed with high impact resistant heavy duty ABS.High quality and practical.Able to accommodate 4.2cm/1.65" fishing rod handle SUPER EASY INSTALLATION for boat, kayak, canoe, pontoon or even a float tube with steel telescopic chuckDue to swivel function, the holder can be easy to clamp on anywhere you want. EASY ASSEMBLY DISASSEMBLY -Can free disassembly assembly parts through Screw shaft, it is very convenient to carry. WIDE APPLICABILITY-Large clamp on opening can clamp to anywhere you want.3 Adjustable Foundation can change every applicable objects ,360 degree adjustable.Can be surfaced or rail mounted. LIFETIME GUARANTEE for the rod holders, as with all our products.you can contact with US - replacement or refund.