AVENTIK Cup Holders serve multiple purposes while you're kayaking. It can hold your drink/cup while also providing storage space for small items. Made of high-strength nylon composite material, even if you accidentally drop it on the ground, it will not easy to crack or break.
Comes in 2 sizes(M/L) of kayak track cup holder to accommodate any size cans, cups or bottles on the market. M ID(inside diameter) is 11", L ID is 12".
What if your kayak/boat track are on the side? AVENTIK can solves this problem. There are slider slots on the bottom and back of the cup holder, no more drilling or screws——"plug and play". Simply insert the sliders into the slots, then slide the T-screw on the slider into the kayak track.