Bormioli Rocco Rock Bar 16.25 oz. Cooler Stackable Tempered Beverage Glasses for Cold Drinks, Water, and Cocktails, Set of 6, Clear

Good: Hefty and well-balanced, will not tip over on the slightest excuse, even when full, as so many glasses do. High-quality tempered glass makes them shatter-resistant, although they will break if abused sufficiently. Mold marks are all but invisible. Stackable even when hot or wet with no risk of glasses jamming together. Bad: A bit high-priced, but you do get what you pay for. When they break they don't explode into slivers like regular glass, but they also don't break up into car-window-ish rounded bits as I was expecting when I saw "tempered glass." (Also, see below.) Ugly: Nothing; a pleasant minimalist design. Bottom line: I ordered a set of these - the 6-, 12.5- and 16-oz. sizes - in 2010, and was impressed enough with them to order another set this month when attrition made it needful. Five stars. Afterword: I have yet to see one of these glasses spontaneously shatter, as a few reviewers have reported, but I'm not all that surprised. I strongly suspect that these incidents were the result of running a scratched or chipped glass through the dishwasher or microwave. Tempered glass is intolerant of anything more than very minor damage; subjecting a deeply-scratched or -chipped glass to sudden heating or cooling is an open invitation for it to release the internal stresses that make up the "tempered" part. This is inherent in any tempered glass; it is not a product defect, but rather the trade-off for an overall stronger material. A glass with a significant scratch or chip should be thrown away. Fortunately, tempered glass is damage-resistant in the first place, so this won't happen often. I have yet to have to do so.

These glasses are very sturdy and nice looking. I have a cast iron sink and have broken a number of thinner glasses while washing the dishes. These have stood up to the occasional slip and fall in the sink. They are stackable. I purchased the 12 oz, the 16oz, and the 21 oz. All are very nice glasses, very satisfied with this purchase.

Great Glasses! There are sturdy, great to hold and worth the price.

I ordered the 16 ounce size, set of six, and the 9 ounce size in this style of glassware. It was time to update our home used glassware, so I was looking for some thing that could stack in the cabinet, had a sturdy bottom, less vulnerable to tipping when possibly bumped, and was easy to clean, dishwasher safe. These glasses came highly recommended through Amazon reviews. I have been using them now for a few days and my whole family agrees, they work great for all kinds of beverages. The set of six in each size was really reasonable in price. I love the way they wash in the dishwasher, and how they fit in the top rack. They have a nice nonagram "Nine sided shape" from the base to the top rim which is round. The short glasses also fit inside the top of the larger glasses. My son, who works for a restaurant equipment company recognized these glasses as widely used in many of the restaurants where he delivers kitchen equipment. I love the 9 ounce size, the big round top is easy for pouring juice or other beverages into without spilling. The 16 ounce are great for iced tea and water. Now it would be fun to find these glasses with a tint of color, not sure if that is available, but I will be looking to add to my sets.

Worth the price. These are shatter proof! And stackable. Dishwasher safe. The size is great size. Easy to use and clean. The glass is clear and the glass is thick.

Sturdy, easy to hold, stackable, and they look good too. They look like glasses you'd be served at a diner or a bar & grill. They come out of the dishwasher with no problem. I liked the first set so much I got a second one. My one complaint was the packaging. Thankfully my first set wasn't chipped or broken (haven't received the second set yet), but they only wrap half the glasses in the box, so I could see how some might arrive damaged.

These are a great size I ordered two sets of the 16.25 Oz. Great for all sorts of miscellaneous types of beverages. They appear to be great quality made in Italy. Nice weight. My only complaint is there is fairly difficult to remove stickers on every single glass that leaves residue so now I have 12 glasses to meticulously clean goo before I can put them away. I don't mind a basic wash but this seems excessive.

I love the quality of these glasses and are stackable, saving space in the cabinet. Also, they are lead free and easy to hold in the hand due to the design. Delivery was fast and packaging professional

Stackable, never stick together if damp, durable and easy to hold. Also have the smaller size. Highly recommend.

EL VASO ES PEQUE;O POERO PRACTICO

Purchased stackable glasses to reclaim cupboard space. These are good quality. Substantial, good proportions and grip. Purchased in this as well as 2 other sizes. Very pleased. Was worried having seen other reviews about size but no such issues for me.

love these. best set I’ve ever owned. I bought 6 small ones, 12 medium sized and 6 of the 16 oz. They’re very robust and might well be the last glassware I’ll ever need to buy.

These glasses truly are stackable! They don’t stick together even when hot out of the dishwasher. Heavy glass, and fits perfectly and comfortably in my hand. LOVE THEM