eBay

[Multifunctional Cup Holder]: This cup holder has multiple uses when you are kayaking. Not only can it be used as a cup holder, but it can also be used as storage for small items such as kayak gloves, bait, scissors, drinks, etc. All in all, it can hold anything you need.
[Great for Fishing Kayak]: The groove design on the edge of the cup holder is very convenient to hang the bait when changing the bait. When you're not holding the bottle, you can use it to hold your fishing gear and bait. What's more, it can also be used as "junk" storage for small items.
[Material]: This cup sleeve is made of TPR, which is soft, flexible and durable. Suitable for all ages.
[Say Goodbye to Spills]: The water cup has a fixed lid. Bottom suction cup design, effectively prevent sliding, scratching and collision. Can be used on paddle boards. Keep your drinks or items safe.
[Super Easy to Install on Kayak Rails]: No more drilling or screws required, almost "plug and play" function. Installing and removing is a breeze. Simply insert the gear track studs into the gear track, slide to desired position, and twist the cup holder until the rubber grommets are firmly seated on the rail

Describe:
Bonus of the large cup holder, you can carry a 40 oz bottle on the kayak and quench your thirst! If you need to stay hydrated while on the water, this cup holder will make it easy. Stay on the water within reach all day.
color: blue
Dimensions: 4.13"W x 4.33"H
Weight: 70g
Material: soft rubber
Package content:
1/2/3/4*Paddle Board Drink Holder
Notes:
1. Please note that due to the influence of light and screen, slight chromatic aberration is acceptable.
2.Please allow 1-3cm error due to manual measurement.