QWORK® 5 Pcs Glass Petri Dishes with Lids, 90mm x 20mm, High Borosilicate Glass Petri Dish Petri Plate for Laboratory Science Project

Just what I needed, good quality and arrived well packaged

Nice bit of kit. Works well.

Whilst not using for their original intension, the dishes appear to be good quality. Well packaged, no breakages.

Good quality product.

Packaged well however one was broken still

Very happy with these. The glass is clear and feels quite substantial considering just how fragile these dishes are in reality. The sizing is a little off, 87mm (measuring from the outside edges) the lid is just over 97mm. Both dishes are the same depth so the sizing isn't an issue for me as I can use them interchangeably. They arrived well packed in tissue paper, bubble wrap and snuggly fitted inside a sturdy box. No breakages. Wouldn't hesitate to buy this brand again.

2 dishes of 10 received broken in the package despite the packaging was not disturbed on external. Dishes need better protection from damage inside of the packaging

Excellent product at an excellent price.

I ordered the QWORK Sterile Glass Petri Dish Petri Plates with Lid,5 Pack, Thicken, 90mm x 20mm. I specifically ordered these to do experiments with water memory by placing water over different images then freezing to see the results. I read that the 90 mm was the best size to use, and I ordered these as I felt they were the best option compared to many others which they are. This set has five of them along with five different covers. There definitely was a lot of thought involved to make sure they were protected in order to get their way to me, which is appreciated. Mine are a decent thickness for what I need, and they seem to be decent quality. I can tell the glass is more breakable than some other glass, but I have more than enough to last since I really only need a couple. I do not need the covers, however, I could use these for larger dishes which means I have nearly double for my work. I'm not seasoned with how petri dishes are supposed to line up, and all I can say is the cover easily goes over. The gap isn't tight, and there's a couple millimeter difference. So far they are working well, and the clarity is nice for what I need to see. I've been using one to two teaspoons of water in the dish, placing it over a picture for 30 seconds, then I keep it in the freezer for anywhere from 5 and 1/2 minutes to almost 10. There are many resources online and different people that share their techniques, and this has been very intriguing and interesting for me. I don't have any complaints, this is a fun hobby and good for all ages, thank you.

The lid of the petri dish is not a lid but a larger petri dish, and the difference is so great that they do not seal tightly and cannot be made airtight in any other way either. It's completely pointless to try to do a protected cultivation in these "petri dishes with lids". What a joke. Do not buy! You can tape two plates together instead. That's better.

They're great, for the price (~$19cad), sturdy and not too thin. They were packaged nicely and arrived promptly. They do have quite a gap between the lid and the bottom plate but I had no issues wrapping with parafilm, it sealed just fine. They are quite big, I purchased these to cultivate slimemoulds and they will make a nice display pieces due to the size of the plate. I would probably not clone mushrooms with these because of how big they are but that may be down to personal preference. I did not have any need to pressure cook these so I cannot speak to the durability in that regard.

Son perfectos. Tienen las dimensiones indicadas, el vidrio esta perfectamente lisos y transparente. Suaves y asépticos.

Three of the QWORK Sterile Glass Petri Dish Petri Plates with Lid were broken when I received these items.