Product Name : Toroid Ferrite Core Model : AS225-125A Material : Iron Overall Size : 58 x 35 x 14mm/ 2" x 1" x 0" (OD * ID * H) Package Content : 1 x Toroid Ferrite Core Weight : 128g Color : Black This Toroid Ferrite Core designed. Used widely in energy transformers, current transducers, instrument transformers, inductors, chokes, ballasts, voltage stabilizers and regulators, welding transformers, extensive band transformers, filters, etc. Note:Light shooting and varied reveals can cause the colour of the item in the photograph barely varied from the genuine factor measurement allowed error is +/-1-3 cm.