GORILLA GRIPPatent Pending Car Cup Holder Expander, Keeps Large Drink Cups Secure, Expander Fits Yeti, HydroFlask, Stanley 18 to 48oz Large Water Bottles, Coffee Mug, Adjustable Arms Insert, Black

I love this thing! It does every thing they say. Fits in any cup holder, any size cup, and you can offset the base if you need to. What more can you ask for? I use this in my rv where the cup holders in the couch are made for child sized drinking glasses I swear. This thing is money and I will be buying a second one so my husband and I can both have one for morning coffee!

Item as described. Haven't had it long but so far so good! Good quality. Able to fit drink containers with a large base. Very ease to use and adjust to size needed.

I bought this cup holder expander because sometimes I just wanted to take my 14-oz Yeti mug with me in the car, and no way would that thing fit in the standard car cup holder. It worked well for this, holding my fat mug quite securely. However, the ways in which it could be improved is in the fitting of the holder to the mug and especially to the car cup holder. There are 3 sides to the upper part, so the handle of the mug fits well into spaces between the sides. You adjust those sides in and out to fit the mug snugly.You fit the upper (fat) part to the mug by rotating a ring around the base of the upper part, and this is, well, okay, but a bit awkward to do. It took me about 3 tries to get it to fit my mug.My biggest problem with this holder was how it fit into the car cup holder. There are three "lugs" that expand out of the base of the unit to press firmly against the sides of the car cup holder, and once you get them adjusted properly, they work great. The problem is getting them adjusted properly. To adjust them, you have to hold the base while rotating the upper portion of the unit. Unfortunately, you cannot hold the base while it is in the car cup holder. You have to pull it out, twist it a bit, and push it back in place. This is very awkward. It took me at least half a dozen tries to get the fit just right.A better way to do this would be to have the lower section fit adjustment be manipulated by a twist dial recessed into the bottom of the upper holder (top of the bottom part), so you can insert the unit into the car cup holder, then just twist the dial until it fits. Done.Other than these relatively minor things, I'm happy with the unit.

I have a Cub Cadet XT1 and the cupholder basically only fits something like a 16oz plastic water bottle. With the Gorilla Grip expander I can put much larger bottles in there now, which helps a lot when you have 2+ acres to mow in the hot sun!

This is the perfect solution for large water bottles and car cup holders! Adjustable so I can use it for a coffee mug or a large yeti water bottle. Very easy to use and stays in place.

I really want to like this, but it's just meh. I bought it for a 2003 Toyota Tundra to keep my water bottle from constantly flopping around since the cup holder holes are pretty large. So this fits the hole fine but the little nubs that poke out to help lock it in place in the cup holder barely extend far enough to get these tight; so it holds it in place but only just...Due to that if you have a large drink in the holder that's somewhat tight you'll just pull the entire drink holder out of the car when you pick up your drink.The adjustability feature is good giving you the ability to expand or shrink the opening to fit different size bottles, but the problem with that is that in order for that to work there has to be a little resistance inside it. So to adjust that you need to twist a little dial thing to open/close it. The problem with that design is that you also have to twist the entire unit to lock it into the cup holder....and that mechanism has less resistance. So instead of adjusting the cup holder part you end up loosening the whole thing so it now comes loose in the car. Not really something you do while driving.It's also pretty tall which its design dictates it would need to be....but yeah, when you put this into your cup holder your water bottle or whatever will be a full 3-4" taller now meaning you're going to whack it any time you reach for anything near your dash.So conceptually it's cool. It does what it says by holding most any size drink in place (nothing small like a Redbull can though) but it's just clunky.

I use this for my 40 oz owala. It stays put for the entire drive!

I like this product for my 32-oz wide-mouth mason jars.I don't like that they don't "Lock" in as much as I'd like. And, I overtightened it, and I think I broke something. I heard a piece of plastic brake and now it's a little stripped, but still works. It's tight, but not as tight as I would like it. Overall, I would still recommend this product for oversized cups, mugs, jars, etc...