Boat cup holder made of ABS plastic. The cup holder clip features anti-slip rubber for a strong grip. Mounts securely to boat rails with an adjustable knob that keeps the holder stable and prevents movement. Holds drinks firmly in place, reducing the risk of spills. Easy to install—simply clamp and go. No tools, drilling, or assembly required. Does not damage the boat. Compatible with aluminum rails, poles, and bimini top rails. This drink holder is simple, durable, and practical. The adjustable clamp fits various bottle sizes and allows rotation. Can be mounted on horizontal, vertical, or angled poles for flexible positioning. Anti-slip rubber lining helps keep containers secure and prevents slipping. Suitable for pontoon boats, bass boats, jon boats, jet boats, yachts, and kayaks. Holds water bottles, coffee cups, soda cans, and other beverage containers. Can be moved to different rails as needed. The universal design includes a storage space for small items such as sunscreen, pliers, lures, wipes, and other accessories. Color: Black Material: ABS Package Contents: 2 x Cup Holders Note: Light reflection and display settings may cause slight color variations. Measurement may vary by +/- 1-3 cm.