Huanyu 90mm Glass Petri Dish with Lids High Borosilicate Glass Petri Dishes

As other reviewers pointed out, the difference in size between the two pieces of the dish is probably bigger than you're used to--the smaller half can slide around a bit when the the petri dish is closed. It's really not a big deal and doesn't affect sterility since you should be incubating or storing them with the medium on top ("upside down") once it's set anyway. Because the bigger dish also has a lip that is longer than the entire height of the lower dish, they can be slightly tricky to pick up when you're pouring (but again, most of the time it won't matter because once it's "upside down," you just grab the bigger dish anyway). I have had them a few weeks and have broken two big halves by accidentally dropping them onto the floor a few feet (the smaller halves survived, maybe because they had the agar in them to absorb some of the energy). So they can be a little delicate, but overall it would probably be a waste to make a thicker petri dish. I have dry-heat sterilized these several times at 170 C for 1 hour with no problems at all. Overall, these pay for themselves over plastic petri dishes once you get about 5 uses out of them and other borosilicate petri dishes are a lot more expensive, so this is probably your best bet if you're a cheapskate like me. :)

worked for my needs, as advertised, arrived in good time. I put tiny bits of water in them and freeze them briefly to see the crystals grow.

As an Ebay seller/buyer for 17 years, I've never seen such care in packaging Fragile Glass Items. Perfect size box, then box in box !! Each dish!!! bubble wrap, extra foam protection! ...WOW!!! UFB!! As for Dishes they have done well in first tests, lids may be a little loose but you never want ones too tight working under flow hood ... Nothing that para film/or micro-pore tape cant take care of. Will buy again. In a Nut Shell, If i were to package my Testicles and send them somewhere, these people are who I'm calling!! Don't Forget to laugh in these hard times my friends!!

A bit to large for current project, but will find one later that can use it.

Need to shoot macro photos of subjects in water. The container needed to be small to restrain the subject to a precise area. This are the perfect solution for that problem.

these dishes were packed efficiently (not a lot of extra packaging material to dispose of) and in individual little boxes. They also arrived quickly and inside the package was a kind note that made me happy I purchased from this distributor. Highly recommend, a good value and feel good purchase.

All of them came in tacked. Packaged really well individually in 1/2 inch thick foam separated and protected on all sides. I dont care about the lids being a bit oversized, they also dont cost an arm and a leg for bolistic petri dishes for a hobby. Thank you.

One out of five arrived broken. Seem OK otherwise.

I just opened the package. Immediately I was greeted by a friendly insert that itself wasn’t just paper but higher quality plastic and well done. I was surprised by this. Then the packaging itself was serious business. They don’t cheap out. instantly i liked this company.

Ottimo prootto, non sono sovrapponibili, per lo meno non sono ermetiche se sovrapposte. Taglie diverse ma il prodotto è ottimo.

Sehr gutes Produkt mit versandsicherer Verpackung.

Used for looking at Veda Austin’s ideas on water structure

Recu en parfait état et très bien emballé.