I've bought a couple sets of wheels from this guy. He's a quality seller and moves a lot of Enve wheels - so I'm surprised to see he doesn't realize these are Enve Classic 25mm tubulars. Or maybe he didn't acquire them at the cost of being Enves so it doesn't matter - but these are Enve 25s.
Now, these are also the most terrifying wheels I've ever tried to stop on - but you'd be hard pressed to find a better deal for some very light, very durable carbon tubulars.
https://www.ebay.com/itm/373313601152