uxcell Toroid Core, Ferrite Chokes Ring Iron Powder Inductor Ferrite Rings, Yellow White 13pcs, 8.2 x 15.5 x 6.2mm auspowers_batchone High speed steel (HSS) provides

High speed steel (HSS) provides good wear-resistance

Supply part of the optional USB power

simply send them back for a NEW set or a full refund

It offers ability to monitor five independent functions

Marking & labeling equipment(2)High visibility for stairs

uxcell Toroid Core, Ferrite Chokes Ring Iron Powder Inductor Ferrite Rings, Yellow White 13pcs, 8.2 x 15.5 x 6.2mm auspowers_batchone High speed steel (HSS) providesuxcell Toroid Core, Ferrite Chokes Ring Iron Powder Inductor Ferrite Rings, Yellow White 13pcs, 8. 2 x 15. 5 x 6. 2mm 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