QWORK 120mm x 26mm Thickened Glass Petri Dishes with Lid - 5 Pack Lab Equipment for Microbiology, Cell Culture & Science Experiments

Bought these for the price. Giving 5 stars because they appear to be good quality glass - they autoclave fine. However as other people have noted there is a sizable gap making them ill suited for agar plates or do plan on using a lot parafilm to ensure they're sealed. I found it a pain and I found a pack of "20Pack Round Clear Frosted Plastic Bead Storage Containers Box Case with Screw Top Lids,Cylinder Stackable Bead Containers for Make Up,Eye,Pills,Gems,Beads,Jewelry,Small Items,2.6x1 Inches" on Amazon for twice the price but much better for mycology and they're autoclavable - although twice the price you get 4 times as many making them a better value.