Black flatwound strings, and red strings

[Glass-Assassin]

Ok, so today I saw somebody playing a bass that was equipped with black flatwounds, and I swear to god they were BEAUTIFUL does anybody know where I might be able to find a pair of those as well as a pair of Quality Red roundwound strings?

[Pilgrim]

Probably tapewounds. They look flat but it's the tape windings over a roundwound string that make them appear so.