TradingBuzz Rio Brands Sip Clip Premium Clip Drink Holder, (Set of 4) Assorted Colors

They are just okay because I wish the opening was larger for bigger cups/bottles.

Work great!!

What the images don't bother to show you, is that this item comes with a huge paper sticker attached that is nearly impossible to remove. The image I'm attaching is what it looks like after the third attempt at removing it (a total of over two hours). There's at least another hour remaining at getting the paper off, and then several hours of scrubbing with something like Goo-Gone to remove the adhesive residue. Frankly, I've decided that it's just not worth the trouble and frustration and will be tossing the junk in the trashcan!In addition to the adhesive nightmare, the item is not very useful. The opening fits less of my drinkware than I had thought it would (basically it only fits a very small glass), and the clip does not fit may surfaces.