Glas-Col Variable speed tube rotator mixer laboratory lab multi-pulser

used working Glas-col variable speed multi-pulser tube rotator the platform can accommodate up to 22 of 15 ml culture tubes or racks with microtubes. Rotation Speed regulator works good. The sturdy unit with very energetic shaking action. The pulse mode and the timer works good. If not satisfied. You can return this unit within 14 days for a full refund minus shipping. lot E2botright