Petri Dishes - 100mmx10mm, Cover

Have reinforced beaded edges to resist mechanical breakage, remain clear after repeated use in wet or dry sterilization cycles, covers have fused-on red ceramic enamel marking spots (for inscriptions), including "cover", bottoms have white ceramic enamel inscription including "bottom", bottom has vertical arrow on the side to locate serial dilution starting point. To obtain complete dishes: order one cover and one bottom. Qualifying Standard: Kimax.