Boat cup holder made of ABS plastic. The cup holder clip features anti-slip rubber pads for a strong grip. Mounts to rail with an adjustable knob that keeps the cup holder securely in place, ensuring drinks stay stable and do not spill. Easy to install—simply clamp and go, no tools, drilling, or assembly required, and no damage to the boat. Compatible with aluminum rails, poles, and bimini top rails. This boat drink holder is simple, durable, and practical, designed to hold various bottle sizes. The adjustable clamp allows rotation and can be mounted on horizontal, slanted, or vertical poles at different angles. Anti-slip rubber inserts keep bottles secure and prevent spills. Suitable for pontoon boats, bass boats, jon boats, jet skis, yachts, kayaks, and other watercraft. Holds water bottles, coffee cups, beer cans, and similar drink containers. Universal design with interior space for storing small items such as sunscreen, pliers, lures, wipes, and other accessories. Color: Black. Material: ABS. Package includes: 1 x cup holder. Light reflection and display settings may cause slight color variations. Measurement tolerance: +/- 1-3 cm.