This item is well made of premium material for durable and practical use. It's easy to use with long service life. The precise design will ensure its practicability in the work of high performance. Designed with 14mm inner diameter, 22mm outside diameter, 8mm height, they are used widely in power transformers, current transducers, instrument transformers, inductors, chokes, ballasts, voltage stabilizers and regulators, welding transformers, broad band transformers, filters, etc. Feature - Color: Green.- Material: Nickel and zinc.- Size: Approx. 2.2 x 1.4 x 0.8 cm / 0.9 x 0.6 x 0.3 inch (L x W x H).- Made of premium material for durable and practical use.- Easy to use with long service life.- Designed with 14mm inner diameter, 22mm outside diameter, 8mm height.- Used widely in power transformers, current transducers, instrument transformers, inductors, chokes, ballasts, voltage stabilizers and regulators, welding transformers, broad band transformers, filters, etc.Packing list: 1 x set of 10 Pcs Power Ferrite Toroid Cores 22mm x 14mm x 8mm