Normally pet shop hamsters are only 5-6weeks old and get bought at that age so they can use smaller wheels. Not a good example to set though
At least they have near to suitably sized wheels. At my P@H the dwarfs all have 4.5" SS and Syrians have 6.5" SS
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Minion to Daisy, Lily, Harry and Peanut <3
Gone but never forgotten
Willow - 18:27 18th November 2016