Feekoon 10 Pieces Glass Measuring Beaker and Graduated Measuring Cylinder with Stirring Rod 50/100/ 250/500/ 1000 ml Thick Glass Beakers and 5/10/ 50/100 ml Graduated Cylinders for Science Lab

The build quality is of the beakers are amazing. They are accurate and definitely worth the money. How the seller packaged them though stood out the most to me though. They did a super job! No way that these bad boys are going to break in shipping! Oh, the thickness of the glass is also nice.

We used these as a prop in a music video. We used water and food coloring with dry ice. No breakage or brittleness - great quality.

A very nice basic set; good quality. I would recommend for general use.

It's a great quality set, my only problem is that the 250ml arrived broken. I'm not sure if it was packaged that way or from transport. Either way, it's just what I needed.

1000mL beaker arrived broken. The rest were fine. Packing was as thorough as possible to prevent damage but I guess with glass there are no guarantees.

The beakers and cylinders will probably not be your point of failure. The point of failure is with the funnels and stirring rod you will use since these break more often.Okay that's not really a 'catch' like in my headline. More like a note. And the funnels are sold separately so I'm not sure I need to mention it. But here we are.The glass beakers and cylinders are quite thick, and have performed well in different experiments and while mixing highly caustic solutions. You will want to use a retort stand (beaker support support stand) with a decently weighted base to minimize the possibility of accidents.Heat resistsance and heat transfer is within the normal range of borosilicate and the graduations are easy to read. I use the 'patch' of white on the side to note information I dont want to forget in the process of an experiment or while distilling a solution. Grease pencil a.k.a China marker works well and I've never had a problem with it melting away while heating.Since it is relatively affordable and durable (for glass anyway), I can recommend the Feekoon 10 piece set to both the home amateur, professional, or parents who are throwing a science-experiment themed birthday party.JHA

Excellent product, outstanding packing, best ever! Can’t go wrong with this product.

ok so most notable factor: environmental concerns be damned, they went all in on the packaging just short of putting a frame of wood or steel around them. even if the courier were to throw this box over a fence theres a decent chance everything will still be usable. after i opened the box i was greeted with a sea of dense crumpled paper padding with a large chunk of packing tape wrapped cloth. i cut around 4 layers of cloth/foam/paper wrap before i even got to a point where i could even take a peek at the beaker. overall performance of the beakers is meh, honestly i'm not a good judge of looks and borosilicate glass is gonna be good regardless of who shaped it so long as there are no defects. i did confirm that it is in fact borosilicate by heating the 1000l beaker up to ~100c (~200f) and dumping icewater into it; it is indeed borosilicate or at the very least it has good thermal shock properties. i broke all my beakers plus hotplate in something of a "bad idea" style of experiment so i got these to replace, no issues so far. honestly i wouldn't write this review if it wasn't for the extreme level of care with the packaging, i was actually kinda impressed. my last set i ordered somewhere else and they did the bare minimum. 10/10 would buy again.