Mini Stirrers/ Stuart. The SM5 mini stirrer from Stuart is powerful magnetic stirrer, capable of stirring up to litre, the stirring speed is adjustable up to 2,000rpm. The unit is made from robust polypropylene with chemically resistant polycarbonate top. Features:• Lightweight stirrer• Capable of stirring up to litre• Universal power adaptor• Choice of designs (Bibby/Stuart/Swirl)• With BioCote antimicrobial protection• Dimensions (L W H): 143x143x66mm