🔍 Discover the Science of Precision! Case of 50 ensures you’re always prepared for your next project. Crafted from high-quality polystyrene for optimal performance. E.O. Sterile for contamination-free results. Maximize your workspace with efficient square design. Perfectly sized for precision and reliability. 130x130mm Polystyrene E.O. Sterile These Karter Scientific Petri Dishes are square-shaped, measuring 130x130x15mm, made from durable polystyrene, and are E.O. sterile, ensuring a contamination-free environment for your experiments. Supplied in a convenient case of 50, they are perfect for labs looking to maintain high standards in their research.