Introducing the Nalge Nunc Square Media Bottles, designed for optimal storage and transport of biological media. Made from durable PETG, these bottles are not only sterile but also feature graduated markings for precise measurement. The square shape maximizes space efficiency, making them perfect for lab environments. Each bottle is equipped with a secure, leak-proof cap, ensuring your samples remain safe and uncontaminated. Ideal for microbiology, cell culture, or any laboratory application, the NALGENE 2019-0030 offers reliability and convenience in one sleek package. Perfect for researchers and professionals alike!