The Streamer® is a fluid shear stress device allowing users to regulate fluid shear stress to cells in culture with laminar, pulsatile, or oscillating flow. Flexcell’s® Streamer® System uses a computer-controlled peristaltic pump. Together with the Osci-Flow® Flow Controller, researchers can regulate the frequency of oscillation or pulsatile patterns based on shear stress level applied from 0-35 dynes/cm2. Flexcell’s® Fluid Shear System is designed to allow users to observe biochemical changes, cell migration and signaling under fluid shear load in vitro.