*Serrated Edge Promotes Easy Pick-up (no more dropped dishes!)
*Numeric Scale 12, 3, 6, 9 Divides Dish Into Quadrants for Easy Orientation
*Double Marking Area, Yellow on Top, Frosted on Bottom
*Feet on Bottom of Dishes Prevents Sticking Together From Condensation

Innovative features and outstanding cell growth properties make the TPP Tissue Culture Petri Dishes the ideal choice for adherent cell culture in research and industry. These optically clear, high-grade polystyrene tissue culture dishes are tissue culture treated only on the base of the dish with a non-treated ring surrounding the growing surface to prevent cell attachment on the edge. A serrated ring around the bottom dish makes pick-up and handling of the dishes safe and easy, while also minimizing the risk of dish droppage due to lid/base disassembly.

A special stacking ring, with spaces for a numeric scale (12,3,6,9) set on the periphery, allows for safe and stable stacking of the tissue culture dishes. The numeric scale serves to ease locating areas of examination while the spaces they create in the stacking ring reduce condensation between stacked dishes and prevent the tissue culture dishes from sticking together.

Two marking areas, located on the top dish wall (yellow) and the bottom dish wall (frosted), act as as a reference for top/bottom alignment and orientation. There are also six special "stops" built into the lid which facilitate optimal gas exchange during incubation.