The Essentially Engineered vehicle cup holder adapter is specifically designed for a broad range of fitment. This adapter fits perfectly in most vehicles, RV’s, boats, golf carts, motorcycles, etc. However, due to the large variety of vehicle cup holders, in certain applications this adapter will not fit. We ask that you please view the dimension photo and compare it to your specific application. Cup holders that are located in vehicle doors, have anything directly above them, are located on a steep angle, or have covers may not work with this design. We offer 100%, full product refunds due to the large variety of fitment.<br> <br>For those that are sure the product fits, this is the best design available on the market. The top portion includes a silicon gasket with four rubber tabs to securely hold 3.4”-3.8” bottles. This ensures the snuggest fit available on the market and still allows the bottle to be easily removed. The bottom, extender portion has three expandable and retractable legs from 2.5”-3.75”. These legs are coated with a friction resistant rubber to ensure that the adapter will not slip from the cup holder.<br> <br>Installation is as easy as it gets; simply hold the base and twist the top clockwise to expand the legs. Once the legs are expanded enough to touch the cup holder walls, insert the adapter into the cup holder. Then, twist the top another ¼ turn to ensure a snug fit (be careful not to over tighten). Once installed, sharp corners will not spill your drink anymore. To remove, twist the top counterclockwise.<br> <br>This adaptor will fit the specific bottles listed below, and many more:<br> <br>Gatorade – 32oz<br> <br>Yeti/Rtic Ramblers – 20 oz., 24 oz. (coffee mug with handle), 26 oz., 30 oz., and 36 ounce (14oz. will NOT fit)<br> <br>Nalgene – 30oz, 32oz, 38oz, & 40oz<br> <br>Hydroflask – 32oz & 40oz<br> <br>Camelbak – 32oz & 40oz<br> <br>Klean Kanteen – 40oz<br> <br> It also accepts a variety of fast food cups, coffee mugs, and more!