Introducing the Nalge Nunc Closures designed specifically for NALGENE Micro Packaging Vials. These closures are made from high-quality PPCO material, ensuring durability and a secure fit. Each closure is sterile, making them ideal for laboratory and medical applications where contamination must be avoided. The natural color allows for easy identification and compatibility with various sample types. With the NALGENE 342820-0116 model, you can trust that your samples are well-protected and ready for storage or transportation. Perfect for researchers and professionals seeking reliable and efficient packaging solutions!