【Material】This cup holder is made of iron material & with painting process by black coating,make it anti-rust and structurally sturdy.
【Large capacity】The inner diameter of cup holder for boat is L3.1in×H3.4in, which big enough to keep most cups handy; work for 10-40 oz tumbler within 3.2" diameter, travel mug, water bottle, can, etc.
【Convenience Designed】The cup holders with "L" shaped export opened Designed, convenience for put and take the cups which has handles/ears.
【Ease of Installation】The packing of car cup holder including 8 PCS screws for installing on wall,railing,guardrail etc.
【Wide Application】The drink holders is Suitable for Marine Boat,Fishing Boat,Pontoon,Yacht,Truck,Car,RV,Warehouse,Swing,etc.