Review on ROZKITCH 4oz Plastic Food Storage Containers with Airtight Lids - Ideal for Fruits, Snacks, Floam Beads, Portion Control, Meal Prep, Slimes, Art Crafts, DIY - Pack of 40, White by Lisa Black

Both cup and lid are pp5 which is good. I have previously had other brands supply caps that were PETG when advertised otherwise. These plates are generally good quality but if you plan to use them for agar keep this in mind! Once on the lid it is very difficult to remove, in fact you must have at least two opposing points of contact on the lid when you pick it up. out. I have smaller hands but you have to somehow hold the lid when you take it off or the other end will break and you just keep fighting. They're not bad, I bought them for the delivery time and affordable price, but I'll use them elsewhere if possible. That being said I only managed to crack one of them by pressing the lid too hard and out of all of them I think only 2-3 were squashed on the PC but I think it was a placement error on my part , not quality.