Amazon.com: IIVVERR 2 Pieces Green Iron Toroid Ferrite Core 1.2in x 0.7in x 0.5in (2 Pieces Green Iron Toroid Ferrite Core 1.2in x 0.7in x 0.5in : Industrial & Scientific
uxcell Toroid Core, Ferrite Chokes Ring Iron Powder Inductor Ferrite Rings, Black 2pcs, 23.5 x 40.5 x 14.7mm: Amazon.com: Industrial & Scientific
Aexit Toroidi con nucleo in ferrite con magnete verde da 74 x 38 x 13 mm (58d4a68fb1119bbd0d22d929be9919c2) : Amazon.it: Fai da te
uxcell Toroid Core, Ferrite Chokes Ring Iron Powder Inductor Ferrite Rings, Black 2pcs, 23.5 x 40.5 x 14.7mm: Amazon.com: Industrial & Scientific
Aexit Toroide magnetica con nucleo in ferrite Toroide 12 X 7 X 15 mm ID: 305834 : Amazon.it: Commercio, Industria e Scienza