4 T130-2 Toroid Core Iron Powder Made in The USA
T130-2 Toroid Core MICROMETALS OD = 1.30 / 33.0 mm +/- 0.02 in ID = .780 in / 19.8 mm +/- 0.02 in Ht = .437 in / 11.1 mm +/- 0.025 in AL=11 +/-5% 250 KHz - 10 MHz From bulk packaging, not in retail packaging.