Material: stainless steel<br>Original dimension: 1.5 x 5cm(Dia. approx)<br>Unfolded dimension: 6.3 x 5cm(Dia. approx)<br>Volume: 75 ml (approx)<br>base diameter: 50mm: cap height:13mm: retractable range:13mm<br>Not only It is fun, but extremely practical, this Folding Water Cupis a must for the busy traveler It helps you take medication anddrink anywhere.<br>Remove top cover from the box, and then extend the cup to its fullheight<br>Clip it on your belt loop, backpack or jacket<br>Comes with a lobster clip for easy carry<br>Perfect if you fancy a quick tipple while youu2019re on the move, thislittle stainless steel cup folds down, telescope-style, into a caseon a key ring! An ideal accompaniment to a hip flask, the fold awaycup makes it much more convenient to enjoy a tot of warming brandyor whiskey while youu2019re out and about in chilly weather. Great forin your backpack, glove box, tackle box, boat, etc<br>