This 12-pack of 250mL sterile polycarbonate Erlenmeyer flasks features baffled bottoms and non-vented caps for secure storage and controlled mixing. The baffled bottom design enhances agitation and oxygen transfer during shaking, making the flasks suitable for cell culture, fermentation, and thorough suspension of particles. Polycarbonate construction provides high impact resistance and shatterproof durability for demanding laboratory environments and high-throughput experiments. The flasks are gamma sterilized per ISO 11137 and comply with USP Class VI and FDA 21 CFR 177.1630 standards. Suitable for research applications including shaker incubation, media preparation, and chemical storage in biopharmaceutical and industrial settings.