Product Description Introducing the New Line of Lab Companion Magnetic Stirrers from Jeio Tech! Offering exceptional features and value The MS-B series offers the following: Housing constructed of Spill Resistant polypropylene Simple to use analog controls Best in Class BLDC motor is exceptionally quiet and provides for long term reliability and speeds from 150-2500 RPMS Stability even at high speeds guaranteed by a wide base and rubber feet Three sizes/models to select from Stirring capacities of 2 4 and 5 liters based on model/size Load capacities of 33 44 and 55 lbs based on model/size Innovative Slip Resistant silicon covers included that come in white and black for improved color contrast when viewing sample User safety constantly monitored by internal microprocessor preventing motor overheating All models available in either blue or yellow Two year warranty