Introducing the NALGENE 342825-0111 Amber 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 amber color provides protection against light-sensitive samples, preserving their integrity. Easy to use and reliable, these closures are perfect for storing and transporting small volumes of liquids. Elevate your lab's efficiency with these essential closures!