Introducing the SAV-IT Closures A21069, designed specifically for 12 mm and 13 mm culture vessels. These closures ensure a secure fit, preventing contamination and maintaining the integrity of your samples. Made from high-quality materials, they provide excellent sealing properties while being easy to handle. Each pack contains a sufficient quantity to meet your laboratory needs, making them an essential addition to your molecular biology toolkit. Perfect for researchers looking for reliable and efficient solutions in their experiments. Enhance your lab's efficiency with SAV-IT Closures today!