The ROTATOR GENIE™ is a compact, durable and user-friendly unit that provides variable speed rotating. The unit's compact footprint will fi t into most incubators allowing for controlled enviroment mixing. Model SI-210X has a durable thermoplastic platform that securely holds vessels with super stretch latex rubber strapping. Model SI-220X has a magnetic platform that securely holds various spring clip mounting plates and bag mounting strips. Platforms are interchangeable and can be ordered separately. Rotating speeds can be easily adjusted with fi ngertip speed control knob. These units are ideal for mixing of almost any kind of laboratory samples.