I am running one that looks very similar. If you ebay search GUB ceramic, they come up on there. The bearings in the cups are SKF.
Its been in the bike a year through all the slop in the pentlands and Scotland, as well as a portugal trip, battered to death in Finale Ligura and Livigno… its still going fine and for £30 ish delivered to my door, I’m happy.
The same ebay shop also does alloy jockey wheels in different colours too for about a fiver.
And while we are on China made stuff, smd Led GU10 50w replacements delivered for £2.99… though not from the bike shop obviously….
Shop around, there are some great deals out there.
HTH
Rick