Boat cup holder made of ABS plastic. The cup holder clip features anti-slip rubber pads for a strong grip, designed to mount securely on boat rails. A 360-degree adjustable knob ensures the cup holder remains stable and secure, allowing you to place drinks inside without worry of spills. The cup holders are easy to install—simply clamp and go, with no tools, drilling, or assembly required, preventing any damage to your boat. Compatible with aluminum rails, poles, and bimini top rails on various watercraft. This boat drink holder is simple, durable, and practical. The large-caliber design accommodates various bottle sizes. The adjustable clamp allows 360-degree rotation, making it suitable for horizontal, slanted, or vertical poles, enabling flexible mounting at different angles. Anti-slip rubber inserts keep bottles secure, helping prevent spills and falls. Ideal for pontoon boats, bass boats, jon boats, and jet skis. The boat rail cup holder fits water bottles, coffee cups, beer cans, and more. Easily mounts to rails on boats and can be repositioned as needed. Suitable for use on yachts, pontoon boats, bass boats, jon boats, and kayaks. Universal drink holders feature a spacious interior to store additional items such as sunscreen, pliers, hand wipes, lures, and small accessories. Color: Black Material: ABS Package Contents: 2 x Cup Holders Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.