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 is a concern. The NALGENE 342825-0113 Amber Closures provide excellent light protection, preserving the integrity of your samples. With easy-to-use design, these closures are perfect for researchers and professionals looking for reliable and efficient storage solutions. Upgrade your lab essentials with these dependable closures today!