Multi-Functional Cup Holder - The cup holder is 2.75" in diameter and 3.54" tall. Fits most soda cans, beers, cokes, glasses, bottles, phones, as well as pens, pencils, gadgets, and more! (Note: Kayak track is not include in package, No drinks ) Easy to Install , Easily removable - No more drilling, Slide the cup holder into the track , and then tighten the screws with your screw driver (no screw driver included), Fit most kayak/ Boat track systems. Stainless steel - Built to Withstand Harsh Marine Environments, The bottom of the cup holder is designed with multiple drainage holes, so that water will not accumulate during use. Our stainless steel cup holders are more durable than plastic cup holders. Great accessory for most kayaks that already have tracks。 Multi-Functional Cup Holder - The cup holder is 2.75" in diameter and 3.54" tall. Fits most soda cans, beers, cokes, glasses, bottles, phones, as well as pens, pencils, gadgets, and more! (Note: Kayak track is not include in package, No drinks )