Am I being too picky?!
My dwarf balls are about 5"....I find that my smaller hams struggle to move the bigger ones. I already have pink and yellow ones but I read recently that clear ones are better as the hamster can see more easily. Saying that, my Syrian has a clear one and he still tends to ram everything (although he's getting better!)
I looked on Ebay but I couldn't see any clear ones that were the right size - but I'll keep trying.
Grr. Is it really too much to ask?!
I have to go to P@H this afternoon to get some shavings so I'll have a look again there but they always seem to have coloured ones. Must try to keep away from the adoption section!