แท่งแม่เหล็กกวนสาร Magnetic Stirring Bar , ยี่ห้อ VWR

Manufactured from ALNICO (an alloy of aluminium, nickel, iron and cobalt) magnets encapsulated with PTFE coating. Cylindrical magnetic stirring bars offer for a wide variety of applications providing excellent mixing effect. Polished finish provides excellent centering and smooth uninterupted stirring. Their perfect contacts with the base of the flask reduce the risk of ricochet during stirring.