Benchmark Scientific Z327-K-BND-BD Hermle K327-K Blood Tube Package with Swing Out Rotor , 1.8-7ml and 8-10ml Blood Tubes, 1 Package/Unit - 08-056 | Genesee Scientific Benchmark Scientific Z327-K-BND-BD Hermle K327-K Blood Tube Package with Swing Out Rotor , 1.8-7ml and 8-10ml Blood Tubes, 1 Package/Unit - 08-056 | Genesee Scientific