Premium Erlenmeyer Flask Set - 50ml, 100ml, 250ml, 500ml & 1000ml - Narrow Neck, White Graduations - Superior Durability & Chemical Resistance - Borosilicate 3.3 Glass - Labs

The flasks arrived in a cartoon box with oddly cut protective foam and bubble wraps as opposed to a single cut-to-dimension case as advertised. The add also said it was made of Borosilicate 3.3, some of them have got “Pyrex 3.3” written in them and some of them say HBG but none of them had the logo depicted in the pictures. One of the flasks was greasy inside.

I picked up this set as a basic building block of my "home chem lab". I'm no stranger to glassware, however, and even own a piece of labware that is at least 100 years old. I was VERY impressed with the quality of these flasks, especially when you consider the price. If you're looking for a set of Erlenmeyer flasks to jump-start your adventures in chemistry, I found these to be EXCELLENT, in terms of value AND quality.

This Erlenmyer flask set has made my son's day. There is a nice variety of sizes. Great for the budding garage chemist in our home. Great quality glassware.

The flasks are nice quality for the money. The only issue I have is the 1000ml has scoring around the neck. The others flasks don’t have any visible issues and the thickness of the glass seems to be even through out.

These flasks are perfect for what i was looking for. They came very carefully packed and arrived extremely quickly.

On time , nicely packaged , met expectations.