I’m just in the process of taking mine off my hardtail.
I think they’re 2.25? Could check?
The one used on the front has minimal wear ridden about 15 times max.
Yours for £15 posted.
The one off the rear has more wear, mostly on the center knobs, but still loads of life left. It also has a very small tear in the top of the tyre that is leaking air. Apparently this is easily fixed by applying a glue or patch.
Both for £20 posted.
Otherwise try the German sites, I paid £60 for this pair, although that was pre-credit crunch!