United Scientific 10 Pack Sterile Thick Plastic Petri Dishes with Lid, 90mm Dia x 15mm, Designed for use in Laboratories, Home, and Classrooms

I recently purchased a pack of United Scientific's 10-pack Sterile Thick Plastic Petri Dishes, and I'm very impressed with their quality and functionality. Whether you're a professional researcher or a science enthusiast, these petri dishes are a great choice for a variety of uses.The dishes arrive pre-sterilized, saving you time and ensuring a contamination-free environment for your experiments. This is especially important for biological applications.Durable Design: Made from thick, industrial-grade polystyrene, these petri dishes can withstand everyday use in the lab or classroom without cracking or breaking easily.Ideal Size: The 90mm diameter and 15mm depth provide ample space for observing cultures or conducting experiments.Clear Visibility: The crystal-clear plastic allows for unobstructed viewing of samples under microscopes or during dissections.Stackable and Easy to Store: The Petri dishes stack neatly, maximizing storage space on shelves or in cabinets.Multipurpose Use: These petri dishes are suitable for a wide range of applications, from bacterial and fungal cultures to seed germination experiments.United Scientific's 10-pack Sterile Petri Dishes offer excellent value for the price. They are a cost-effective option for both professional labs and classrooms.If you're looking for a reliable and affordable set of petri dishes, I highly recommend the United Scientific 10-Pack Sterile Thick Plastic Petri Dishes. They're well-made, convenient to use, and perfect for a variety of scientific applications.

Well done enough to do make believe experiments

These are a nice size but the pack of 10 came with 2 cracked. One of the 2 was unusable for its intended purpose as the crack was large and almost had the top in 2 pieces.Not worth the money in my opinion.

Professionally, I've spent the past decade or so working for companies with ISO certified cleanroom space. We buy sterile agar plates to test surfaces and air for contamination in the cleanroom. The best sterile plates are generally marked as sterile and double bagged to ensure that the seal remains intact. The outer bag is wiped prior to entering into a clean space. Then, operators open the outer bag carefully to extract the inner bag without touching the outer bag, and they are then transferred to the "cleaner" clean space.United Scientific's plates are single bagged, making it difficult to use them in a truly clean lab space. The plates are all intact, but the outer bag collected a lot of dust and warehouse gunk. There's also a small puncture in the bag, which means that they are no longer sterile. There is no C of A included with the shipment either.The plates themselves are fine. Since they're plastic, you can't autoclave and reuse them and there's a pretty high likelihood that the single bag will be damaged on arrival. There is also no lot information on the packaging for traceability. If you truly require a 100% sterile plate, I'd suggest choosing a different brand. If you want to do a fun science project with your kids though, these will do. For my use at home in culturing mycelium as a hobby, they'll work fine.

These are great quality they were perfect for my sons science fair project.

The lids are at least 1/4-1/2CM too big for the bottoms. I was planning to use these for bugs to take photos, but it's pretty much useless. VERY, very flimsy and breakable. I would suggest finding another brand. Petrie dishes should not have such a huge gap. In addition, it's not sterile if it comes packaged the way it did--not that it matters for my purposes. I've used petrie dishes in a lab, and they definitely aren't supposed to be like these.

These are shallow so I am using these for water dishes for amphibians and lizards. These are perfect water dishes and great for the price.

These are thin and brittle petri dishes. Easy to break when working with agar, and definitely not good for dart frogs, as one cut itself on the sharp edge when feeding.