Where can I get a wheel for my harvest mouse please

I was looking online and it looks as if they love wheels.

The trouble is fitting one into a glass vivarium

Thanks for any help

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Mim
Mummy to 2 Gerbils, Midge and Fudge (now Madge & Freda), 2 Harvest Mice Tom Thumb (now Thumbelina) and Tiny Tim and Nanny to 4 Rats Elli, Harry, Roo and Pip, 6 Mice Storm, Bluebell, Nutmeg, Snowdop, Midnight Coco and Shadow, 2 Rabbits Gus and Hunny and Gorgeous Meg the dog

The one your daughter had off me was from aquatic and pet warehouse the 4.5 inch silent spinner. It's 6.99 in there at the minute.

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I'm Amy I have a
German shepherd-blade.
10 male rats.
2 male mice.
1 Syrian hamster.