Specification Brand : Dynalon BulletPoint : Price for 3 Packs of 12 pcs ItemName : Dynalon 304425-0005, 5/16x1-1/2" PTFE Octagonal Red Stirring Bar (3 Packs of 12 pcs) ItemPackageQuantity : 4 ItemShape : Octagonal ItemTypeKeyword : science-lab-stirrer-bars Manufacturer : Dynalon Material : Polytetrafluoroethylene NumberOfItems : 36 NumberOfPieces : 12 PartNumber : 304425-0005 ProductDescription : Features: ALNICO V magnetic cores which are one of the most powerful permanent magnet alloys available. Stir bars should not be stored in a random mass or dropped on a hard surface, especially steel. Stir bars should be stored in pairs to maintain magnetic strength. In general PTFE thickness accounts for 18% of stir bar diameter. ProductSiteLaunchDate : 2016-09-07T07:48:19.417Z