Fish-master Fishing Boat Adjustable Swivel Rod Holder Large Clamp Opening Bracket Plastic Spinning Fishing Tools 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.(Max.opening 4.75"/12cm),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.