Specification AgeRangeDescription : adult Brand : FIRST4MAGNETS BulletPoint1 : Pack of 4. BulletPoint2 : 1 9/64" diameter x 23/64" thick. BulletPoint3 : 3/16" diameter countersunk hole. BulletPoint4 : 11.02lbs Pull. BulletPoint5 : 842 degree Fahrenheit operating temperature. Color : 2pcs ExternallyAssignedProductIdentifier : 8118986146734 ExternallyAssignedProductIdentifier1 : 5055641243762 ExternallyAssignedProductIdentifier2 : 05055641243762 ExternallyAssignedProductIdentifier3 : 00682241274206 GpsrSafetyAttestation : 1 IncludedComponents : Magnets ItemName : 1 1/8" Diameter x 23/64" Thick Alnico Shallow Pot Magnet c/w 3/16" Dia countersunk Hole - 11.03lbs Pull (Pack of 4) ItemPackageDimensions_Height : 8 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemShape : Pot ItemTypeKeyword : industrial-alnico-magnets Manufacturer : Magnet Expert Material : Alnico ModelName : DHAEY ModelNumber : ALSP2909M5-4 NumberOfBoxes : 1 NumberOfItems : 4 NumberOfPieces : 4 PackageLevel : unit PartNumber : ALSP2909M5-4 ProductDescription : Description Material quality : Neodymium magnets Application: Industrial Magnet Plating: Ni-Cu-Ni ( Nickel ) Tolerance: 0~1mm Max Operating Temperature: 80 degree / 176 Fahrenheit degree Unit size: millimetre (mm.) 1mm=0.0394inch NOTICES 1. The NdFeB magnet is sold by size, the unit of measurement is millimetre, please pay attention to the size. 2.Due to the particularity of the magnet and manual measurement, there may be an error within 1mm. 3. Related electronic products, such as Mechanical watchs ,bank cards, mobile phones, computers, televisions, pacemakers, etc., they are easily affected by neodymium magnets, please keep a certain distance to avoid unnecessary losses. 4. When connecting two magnets, draw them close to each other slowly and gently. The magnetic properties of NdFeB magnets are incredible, please be careful not to hurt your hands when using them. 5. NdFeB magnets are fragile, the characteristics are hard and brittle, especially large-size products, strips and thin slices, separate the magnet, please carefully shift staggered, must not break the hard pry, so as not to damage the product or injured , Separated to maintain a certain distance, so as not to the collision, damage to the product, or even dangerous. 6. NdFeB magnet surface coating protection, with a certain anti-rust corrosion resistance, but if not used in time, be sure to keep away from the high temperature and corrosive environment. This product is designed for educational, research, professional, commercial or industrial use for school educators, researchers, professionals and commercial or industrial users.