【Marine-Grade Durable Material】The boat cup holder made of marine-grade materials that are corrosion-resistant and deformation-resistant. It resists aging from dampness and sun exposure. Marine cup holder has 5 years corrosion-free performance, far outlasting ordinary cup holders
【Large Drain Rapid Drainage】Cup holder insert with large drain hole, quickly drain seawater, condensation, no more water stains. The cup holders for boat can stay stable on rocking boats and bumpy rides, preventing cup slips and tips
【Perfect Replacement】Plastic cup holder designed with 3.4” H x 3.5” ID x 4.3” OD dimensions. its 3.5" inner diameter fits most cups on the market. It perfect an ideal direct replacement for old boat cup holders on boats and RV
【Insert Stable Support】The boat cup holder inserts can tightly fits the mounting surface to avoid loosening and spills. Rock-solid during boat navigation or truck off-road
【Wide Application】The plastic drink cup holder is suitable for most boats, cars, trucks, RV, deck, sofa and more. Boat cup holders for drinks is compatible with a variety of glass and can containers, making it highly practical
