Stainless Steel Portable Outdoor Travel Camping Folding Collapsible Cup Metal Telescopic Keychain 240ml x 1pc

this collapsible cup looks good and hold liquid but its top is quite hard to take off.

It's already come to the rescue two times as we have run out of coffee cups at work and that's why I bought them. It does have a metal taste though.

I wanted a collapsible cup but not one of the tiny ones. This is a good size, I was going to give a negative comment because of the long delivery time but changed my mind because I'm happy with the cup!

Works very well. This is a fairly large cup. Not really key ring size. I keep it in my lunch cooler. You could use the clip for backpacking or hanging on a cooler strap. I plan to buy some of these in a smaller size, as well, for keeping in the cars and such. There is a shot glass version.

Bigger than expected. Was looking for something about the size of a shot glass. Just looks awkward on a key chain.

good quality and awesome invention but clearly says 2 count and only recieved one of the 3cera stainless steel folding cup

this is really big, more for a hiker or boyscout, doesn't fit in my purse

It's larger than I thought it would be, but looks like it will last forever.