DAYANG EXERCISE RUNNING WHEEL NEW TO WUNDAPETS MADE FROM HIGH QUALITY PLASTIC EASY TO CLEAN SIMPLE ASSEMBLY (2 PIECES) CLEAR GREY COLOUR WHEEL WITH DARKER GREY STAND HELPS TO PROVIDE A PLACE FOR YOUR FURRY FRIEND TO GET THEIR MUCH NEEDED EXERCISE SMALL: SAUCER SIZE: 2.5 CM X 12.5 CM SAUCER WITH STAND: 9 CM X 12.5 CM IDEAL FOR DWARF HAMSTERS