DADE multi-tube orbital rotator shaker microplate culture mixer vortexer

used working DADE variable speedmulti tubes/ plates (or culture flasks/tubes) shaker /rotator the plate can accomodate 3 microplates or multiple tubes. Rotation Speed regulator and the timer works good.The unit has the metal plate with clamps to hold the microplate safely at high shaking speed.. If not satisfied. You can return this unit withing 5 days for a full refund minus shipping. lot newesstmedcentright