The Benchmark Scientific 50ml self-standing centrifuge tube inserts, designed for use with an 85ml rotor, come in a convenient pack of 2. These inserts are perfect for separating and containing samples during centrifugation processes. The self-standing feature adds stability, preventing accidental spills or contamination. These tubes are reliable and sturdy, ensuring secure sample processing. Compatible with the specified rotor, they guarantee efficient and precise results, making them essential for any laboratory working with varying sample volumes. Put your trust in Benchmark Scientific for high-quality laboratory accessories that meet your needs.