You get one, made by Mullard, ferrite rod inductor, with mounting clamp, these are really good for experiments, electromagnetism projects, chokes in switch mode power supplies, Radio frequency chokes in transmitters & use as an HF antenna for short wave & long wave bands. Fitted with a pre wound coil enamelled wire.
Superb ferrite rod quality, these are not the rubbish sold elsewhere, these were made by Mullard UK in the 1980s & are ex NATO stock from an MOD stores surplus’s stock,
Global customers can purchase via Ebay GSP
Please note I do not accept returns as the item is sold new in its original packaging, so please ensure you check it’s what you want prior to purchase.