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

Sehr praktischer Ersatz für Petrischalen. Etwas zu teuer da Versand aus USA.

Great small storage containers for a cheap price. Hold loose beads, or nicnacks great. These are actually awesome. Got them for being able to sanitize stuff and they hold up in the pressure cooker since they're PP5.

Nothing to dislike, they are fantastic.

I use them as reusable petri dishes and they are air tight, preventing contamination. I've got one from a few months ago that is still clean.

These PP5 bead cups work well as reusable Petri dishes. You can use them for no pour agar, and they eliminate the need for parafilm. Sturdier than condiment cups, and less plastic waste. It's an economical and eco-friendly alternative. They are slightly more opaque than regular plastic Petri dishes, and I would suggest using food color in your agar for better contrast and clarity. Overall I am very pleased with them. UPDATE: The clarity is fine without any food coloring. They're airtight and have become one of my favorites.