Keeps Your Boat Well Organized: AVENTIK Cup Holders serve multiple purposes while you're kayaking. It can hold your drink/cup while also providing storage space for small items. 4 holes on both sides for sunglasses, scissors, pliers, pocket knife and other fishing tools. Grooves on the edges are perfect for fishing lures and hooks. Anti-slip Design: Inner of cup holder is designed with soft silicone petals which can fix the cup in place to prevent the drink from shaking and spilling. The opening edge can accommodate cups with handles, stable fit any cup shape! Install Anywhere You Want: 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. Holds Any Bottle: 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". Tough & Reliable: Made of high-strength nylon composite material, even if you accidentally drop it on the ground, it will not easy to crack or break. If you are not satisfied with AVENTIK Cup Holder, please feel free to contact us. Eupeng Multi-Functional Kayak Cup Holder Track Mount Non-Slip Design Lure Holding Tool Storage 2 Sizes Aventik Boat Cup Holder Kayak Bottle Holder