Lees Kritter Krawler Colored View-Thru Box Exercise Wheel Pink Jumbo

The Mini KK Ball is ideal for Dwarf hamsters and pet mice. Allows pets the freedom to roam while being safely confined. Ribs inside to provide better gripping power for pets(except Dwarf size). Size: 4 3/4in DIA Dwarf Colored Made of Shatter-resistant Plastic.