Specification Brand : uxcell BulletPoint1 : Product Name: Ferrite Cores; Material: Ferroferric Oxide; Model: T225-26 BulletPoint2 : Inner Diameter: 35.4mm / 1.39"; Outer Diameter: 57.7mm / 2.27" BulletPoint3 : Height: 14mm / 0.55"; Total Size: 14 x 57.7mm / 0.55" x 2.27" (H*D) BulletPoint4 : Color: Yellow, White; Net Weight: 743g BulletPoint5 : Size: 5pcs 35.4 x 57.7 x 14mm; Package Content: 5pcs x Ferrite Ring Toroid core iron Color : Yellow White 5pcs ItemName : uxcell 5pcs 35.4 x 57.7 x 14mm Ferrite Chokes Ring Iron Powder Toroid Cores Yellow White ItemPackageDimensions_Height : 18 centimeters ItemPackageDimensions_Length : 6.9 centimeters ItemPackageDimensions_Width : 11.8 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : electronic-component-ferrites Manufacturer : uxcell Material : Ferrite ModelNumber : a18070600ux0068 NumberOfPieces : 5 PartNumber : a18070600ux0068 ProductDescription : This is a ferrite ring, not a magnet. It has no magnetism. Iron powder core is generally stored near signals of place. It has the characteristics of isolating eddy current, low permeability and restraining interference. Used widely in power transformers, current transducers, instrument transformers, inductors, chokes, ballasts, voltage stabilizers and regulators, welding transformers, broad band transformers, filters, etc.