VILTROX C-AF 2X II Teleplus Autofocus Teleconverter 2.0X Extender f Canon EOS EF.

Only selling because I bought the wrong one for my camera. 

Converter is brand new, never used, still in box with instructions.

Feel free to send reasonable offers $$$ as it's brand new.

Cheers,  thank you

(-Take no notice of the aperture, focal type and focus length  setting advertised.  Ebay wouldn't let me list the converter without something in those sections.)