Kisbeibi Roestvrij staal Champagne Fluiten Glazen Set, 200ML Onbreekbare Champagne Wijnglazen, voor Valentijnsdag Bruiloft Verjaardag Feest,3 Kleuren om te kiezen (Zilver, 6 stuks)

These are not made from one piece, either, there are joins. The stem, bottom and top are three separate parts that have been fitted or welded together, it seems. I would not trust these in the dishwasher, as you might end up with water inside the stem.The bottom is hollow, and they are very light. I could see them being quite top heavy when full.The edges are not exactly sharp, but do not feel comfortable in my mouth, because the metal is so thin.Yes, they are unbreakable, and they look smart, but that does not make up for the downsides.I don't know why stainless steel would keep drinks cool longer. It has higher thermal conductivity, so does that not mean it heats up quicker than glass? The reason stainless steel flasks keep drinks cold longer is because of the vacuum insulation, not the material itself.This is a Vine Voice review, but that has not changed my opinion and I only review items I would buy. I try to use or test all products, or if I can't, I at least check them.My rating system:5 stars – great: as described, high quality4 stars – good but has minor problems3 stars – has significant issues2 stars – bad: not as described or does not function or not useful for intended purpose, but has redeeming features1 star – terrible: not as described or does not work or dangerous to use, no redeeming features