Universal Drink Holder fits All Rails/Tubes (5/8"– 1¼") Attach to Lounge Chairs, Folding Bag Chairs, wheelchairs, Walkers.Wine Glass Holder, Coffee Cup Holder, Water Bottle Holder, Beverage Holder.

I mounted this on my wheelchair that has sides attached to the arms. The sides severely limit mounting space to just below the armrests. No tools were needed as it attaches with a hose clamp with its own winged-head screw. The holder itself can be easily removed for convenience. It holds my 24 oz handled tervis mug, my 20 oz stainless coffee cup, and my foam can cooler. I've had 5 other mug/cup holders, this is the best by far.

Smart design. Had it on our sailboat. Very sturdy. But in a couple years, it had yellowed considerably and didn't look nice anymore.

I ordered two of these cup holders and loved them so much I purchased two more for me and two for a friend. Picture this: The winds were gusting between 18- 29Knots my 36ft heavy sailboat was often at a 23degree tilt during gusts and the cups stayed level through the entire ride with the Zarcor hinge that keeps the glasses vertical no matter what the boat is doing! Great job Zarcor! These cup holders hold 12, 16 & 24 oz Tervis insulated cups, the red or blue plastic 12oz (you can find anywhere) plastic glasses, the multicolored short stem wine glasses I got at Cosco and any 12oz or larger can.Important note: the glasses I mentioned will slide around a bit in the holder but they will NOT fall off, nor will the sliding compromise the liquid inside the glass even during a wild wind sailboat ride. The clamp Zarcor uses to attach to the rail is so easy to install, I installed it myself without the help of my Master's Degree Engineer husband. He typically installs everything and he commented to me how much he likes the holders and "good job" for me on installation.Another important note: If installing on a sailboat make sure the clamp swings side to side, not front to back for obvious reasons. If you have a sailboat you will love these rail mounted universal glass holders by Zarcor! I do!

the clamps scratch your stainless steel rails . the top part of the holder is too big for water bottles or beer bottles without an foam rubber type holder to stick them into .. the seller was hard to deal with when the order was messed up. they do swivel .. probably better for a sail boat than power.. there are better alternatives on the market

I've never seen a more clever drink holder! It will hold a coffee cup with a handle, or a wine glass. It swivels, so no spilling as the boat heels or rocks from waves and wakes.

In the Spring/Summer/Winter time we live on our back patio on our swing. We are always struggling with any type drink we have out there. You have to lay it on the ground and hope no bugs jumped in and it was a pain stopping the swing to grab your drink. I found this cup holder on Amazon and wasn't sure what to expect or if it would work. I am happy to report we bought two and have each of them attached to each side of the swing and they work perfectly. It holds any kind of can, glass, coffee mug and even a wine glass on the bottom. We are both very happy to have come across these. Sometimes it is the smallest things that make you happy!

This was attempt number two at an acceptable wheelchair cupholder for my new chair. Unfortunately, this one rotated just as badly as the first one. Even though the top arms don't spread, they still caught the doorjamb and trim strip. And there wasn't enough clearance for a wine glass. Sigh . . .

The media could not be loaded.  My mother has been looking for something like this for quite sometime. Attaches easily to crutch and its great that you can romove the cupholder when not in use but still keeping the clamp attached. Now she doesn't need to rely on someone else to carry her beverage. Would be great if it came in full colors.