Look pretty much like mine are an older (vintage! retro! Apologies...) set of those. The hubs on mine have five 'teardrop' cutouts and are a shade lighter (weight). Interested? Have got a freewheel, silver, 18tooth, barely used and a 16tooth screw-0n cog - happy to throw in both...
Thanks very much. Are they these?
https://www.parkersofbolton.co.uk/products/700c-flip-flop-single-speed-fixie-fixed-wheelset-black