One FT140-61 Toroid Core, Brand: Fair-Rite, AL=150 +/- 20 % uH=(AL*Turns2)/1000, Wideband Transformers 20-500MHz, RFI Suppression Above 20MHz, OD= 1.400 in / 35.55 mm +/- 0.75 mm, ID = 0.900 in / 23.0 mm +/- 0.55 mm, Ht = 0.500 in / 12.7 mm +/- 0.50 mm, From bulk packaging, not in retail packaging.