These Benchmark Scientific IPD9600-50T adapters are designed to accommodate 4 x 50ml tubes, providing a pack of 2 for your convenience. These adapters are precision-engineered to ensure a secure fit and reliable performance when used with compatible equipment. The durable construction of the adapters guarantees long-term use in your laboratory setting. Upgrade your equipment with these adapters to enhance your workflow efficiency and ensure accurate results during centrifugation processes. Trust in the quality of Benchmark Scientific products to meet your laboratory needs with precision and consistency.