Cooling Ham Pot - For Hamsters

Cooling Hamster Pot M
(Golden Hamster Size)

Features
Perfect for pet heatstroke prevention and summer fatigue with aluminum construction.
Anodized finish resists dirt.
Aluminum purity: 99.5% or higher.
(See the 4th photo for other details)

I purchased this, but my hamster showed no interest... it's almost unused.