【Dual Installation Design】This cup holder features both track mount and clamp mount, perfect for kayak track installation and tree stand mounting, widely used for kayak fishing and hunting outdoor activities. 【Anti-Slip & Protective Design】High-quality grip pads not only prevent slipping but also protect your gear (cups, phones, rods) from scratches. 【Fits 12oz to 40oz Drinks】Equipped with removable anti-slip pads, it securely holds most drink sizes from 12oz cans to 40oz large tumblers, providing a stable grip and preventing scratches. 【2-in-1 Cup Holder & Storage Bin】Featuring a seamless interior without side gaps, it works as both a cup holder and a practical storage bin for fishing lures, scissors, fish grippers, power banks, sunglasses, keys and other small fishing & hunting accessories. 【Heavy-Duty Stable Clamp】The strong clamp is compatible with round and square aluminum rods, supports 360° adjustable rotation, allowing you to install it at any angle for easy use. 【Tool-Free Installation】Easy to mount and adjust without extra tools, saving time for your outdoor activities. 【Universal Fit for Multiple Scenes】Ideal for kayak, tree stand, boat, bike, motorcycle, stroller, wheelchair, and more; all-season usable for outdoor enthusiasts. 【Durable Outdoor Accessory】Made of high-strength durable material, it is built to withstand harsh outdoor environments, tool-free installation and adjustment, perfect for long-term fishing and hunting use. Our upgraded track clamp cup holder is specially designed for outdoor enthusiasts, especially for kayak fishing and tree stand hunting. With dual installation options, it can be directly mounted on kayak tracks or clamped on tree stand rods, round and square aluminum bars, bringing great convenience to your outdoor activities. This versatile cup holder supports drink sizes from 12oz cans to 40oz large tumblers. The removable anti-slip pads keep your drinks stable and protect them from scratches. What’s more, the seamless interior design makes it more than a cup holder - it also works as a practical small storage bin for your fishing lures, keys, grippers and other small accessories. Built with a strong 360° adjustable clamp, it fits most round and square rods firmly and stably, no wobbling during your outdoor adventure. The durable construction ensures it can withstand harsh outdoor environments. Whether you are fishing on the kayak or hunting on the tree stand, this cup holder will be your ideal outdoor accessory.