Disposable 90 x 15 mm dishes & covers. These dishes cannot be heated. (Order a 20/pk of sterile petri dishes to save.)
Perfect for what we needed it for
Review by Laura
Small, inexpensive package of petri dishes was what we needed, and I was really happy that I didn't need to buy a package of 50 to get the 1 or 2 I needed. The lids are a bit loose fitting, but that is easily fixed with a few rubber bands.
Worth The Price
Review by Lorrie
I purchased this set to use for iron filings. It was my intent to use tape to keep the lids tightly sealed anyway, so loose lids weren't going to be an issue for us. However, if you are looking for a tight lid on this set, you may have to use tape or rubber bands to keep the lids snug. This was perfect for what we intended to use them for though. I'm especially pleased that I could buy only two of these, as I had no need for more than that.
Use them as party favors
Review by Davi
We had a science birthday party for our 7 year old, and each guest took home a plastic petri dish filled with Flubber that they made at the party. Since the petri tops fit loosely, we used rubber bands to keep them closed. The kids were also interested to learn what petri dishes are usually used for, and we encouraged them to go home and grow something in them. :-)