Specification Brand : FIRST4MAGNETS BulletPoint : SPECIFICATION: 20 packs included, each pack includes one horseshoe magnet and one re-sealable tube of fine iron powder. 75mm x 39mm x 8mm. 2.95 in. x 1.54 in. x 0.32 in. BulletPoint1 : IDEAL FOR LEARNING AND EDUCATION. Iron powder is must-have equipment for any science classroom and budding scientists. A very popular item, fine iron powder is great for learning about magnetism and magnetic fields. BulletPoint2 : SPECIFICATIONS. 80g. Vacuum packed in a clear bag and supplied in a protective telescopic container. BulletPoint3 : PROTECTIVE COATING. Each magnet is protected by a red and silver epoxy paint coating. BulletPoint4 : SPECIFICATIONS. 75mm x 39mm x 8mm. 1kg maximum pull. BulletPoint5 : Power Source needed for operation. An economical Eisco power source is PH0971DCAC which is not included Color : Assorted Colors ExternallyAssignedProductIdentifier1 : 5055641211327 ExternallyAssignedProductIdentifier2 : 05055641211327 ExternallyAssignedProductIdentifier3 : 849230046873 IncludedComponents : Horseshoe Magnet ItemName : Iron Filings 0.18lbs - Science & Education (1x 0.18lbs Bag) (Pack of 40) ItemPackageDimensions_Height : 2.73 millimeters ItemPackageDimensions_Length : 142.93 millimeters ItemPackageDimensions_Width : 10.15 millimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : science-education-magnetism-kits Manufacturer : Magnet Expert® Material : Plastic ModelNumber : IRONFIL-40 NumberOfBoxes : 1 NumberOfItems : 40 NumberOfPieces : 10 PackageLevel : unit PartNumber : IRONFIL-40 ProductDescription : These cylindrical magnets provide an excellent tool with which to visualize and kinesthetically experience the push and pull of magnetic fields. The markings on the cylindrical magnets denoting the poles are very helpful. The magnets come with keepers and a box for easy storage. ProductSiteLaunchDate : 2017-11-28T00:00:01.000Z PullForce : 1 kilograms Size : 3200g StreetDate : 2017-11-11T00:00:01Z Style : Single SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable UnitCount : 40