This listing is for a Vintage Realistic STA-80 Stereo Receiver Knob for either Selector, Speakers, Bass or Treble. It is used, not new, so slight cosmetic imperfections can be expected.
It may fit other Realistic models, but if you are considering it for a model other than an STA-80 please do your research.
If buyer address is outside of the U.S., the customs and shipping will be handled by eBay's Global Shipping Program. I have no control over that service or what they might charge. I have heard it can be expensive.