Et voila. Now I can serve people without having to cobble together glasses and coffee mugs (6 of each). Of course I had to test out the durability, so I dropped one off of a chair (about two feet) onto the hard floor-It landed on the lip and no problems. And yup, just pushed the 31cl (middle one) off the kitchen table onto the floor and it's just fine. This could turn into a dangerous game. The 25cl (the one on the right) is probably my favourite aesthetically, although the 31cl will be good for cocktails. A little wide in the middle (the 31cl), although you can't quite see it in the picture.