Seven Sparta 2 Pack Car Cup Holder Expander with Offset Adjustable Base, Compatible with Hydro Flasks 32/40 Ounce, Compatible with Yeti Ramblers 20/26/30 Ounce, Other Bottles in 3.4"-3.8" (Black)

This is a well made cup holder and it looks good. You just twist the base for a perfect fit. Great for large or extra large fountain drinks, or up to 50oz brands such as Ozarka spring water.. If i had two cars I'd buy another one. Its good.

We have had our pontoon for 5 years now and get so frustrated that our table cup holder does NOT hold ANY kind of cups!! only cans!! And then I found these on amazon!! I couldnt find any reviews that had these on a boat but I took a chance and they work perfect!!!! Holds ANY size cup!!! its very stable in the holder, easy to clean and lightweight quality material!! and very adjustable!! I've been telling all of my boater friends about them!!

This cup holder is amazing. It will fit in any car, lawnmower or tractor cup holder. The bottom expands to fit into the cup holder and the top is wide enough to hold large water bottles. The only assembly needed is to tighten the screw provided to connect the top and bottom pieces. A tool is included to connect the two pieces.

They need to improve the design of this cup holder, though it can be made to work. Waffled between giving 3 or 4 stars, the functionality is there but the fit is tricky. Once extra rubber shims were added at the adjustment points, it made this into a secure, useful adapter. This was purchased to fit in the back seat cup holder of a 2022 Honda CRV, which has shallow, squarish holes. At first it seemed easy to install, though having to remove a screw to make adjustments is awkward and annoying. I put a water bottle in and the cup holder wiggled and tipped and came out. It took about 6 tries before it became obvious that without more grip in some areas, it just won't sit securely in something with a square-ish profile. An old mouse mat with the fabric pealed off to expose the grippy rubber, provided the padding needed for a tight, secure fit. With the addition of the extra gripping material, the holder securely holds a full 32 ounce water bottle even while being tugged and wiggled. Video of pulling, pushing, and wiggling the holder with full, large water bottle, I was really pushing on it, too. One picture shows why it was needed, even a slimmer bottle doesn't fit without the adapter. The final picture shows the piece of mouse mat (there were 2 pieces used, one at each front adjuster near the corners and folded for extra thickness at the top where the cup holder flares out. Once the fit was perfected with the rubber shims, it is quick enough to remove and reinstall.

I put this on a John Deere Riding Lawn Mower, only comment is I was able to barely get in in the existing cup holder not because of this product, but because of the way the cup holder is made, there is a significant gap. I was able to get in attached and it works awesome! The quality for the price was better than expected! It is stable and holds large cups well.

Let me tell you, this was a huge upgrade from our last cup holder expander. Our last one didn't fit the cup holder and we had to put a can sleeve on it to keep it from moving around too much. It also broke eventually. THIS one, however, is incredibly sturdy. It's easy to set up and adjust to the size of your cup holder. If you set it up at the proper angle, it doesn't budge unless you wiggle it too much. We have those huge Costco thermoses and they fit perfectly. This is where the "almost" too perfectly comes in. With the non-slip bottom part of the thermos, it slides right in. However, you REALLY have to wiggle it to get it out, which can be a hassle when you're trying to take a drink while you're driving. If you wiggle it too much, it thinks that you are trying to adjust the tightness of the base, which can loosen it a bit. A solution to this would be to remove the non-slip part of the bottle for the time being. I would still rather deal with this than a flimsy cup holder that moved around too much.

While large bottles like Nalgene and 32 oz Owala technically fit in the holder, they are held in so tightly by the rubber grips/flaps that it was impossible to wrench them back out without pulling the entire holder back out of the car’s cup holder. Even if I could have expanded the base enough for it to hold tight, I still would have had to wrestle to get the bottle back out, which is inconvenient (and unsafe) when driving. This might work fine for smaller bottles and cups, but since I specifically wanted it for a Nalgene, I’m returning it.

It holds cups securely and is adaptable to fit in various sized car cup holders. Just what we needed!

Great stuff

Justo lo que esperaba. Robusto y encaja perfectamente en el espacio del coche.

These are really nice for coffee mugs or larger travel mugs. Many vehicles have shallow cup holders that drinks move and splash. These were great in my Jeep for offloading.

Used it once and it snapped in half

Such a problem solving product. Very high quality. Sleek and professional look. Definitely recommend!