I really love hamsters...
Here's what i got about robo hamsters;
Roborovski hamsters are the the smallest and fastest of all hamsters, can live up to 2 to 3 and a half years and are commonly kept as pets.
Roborovski hamsters are small, short tailed dwarf hamsters. They might not be perfect as family pets as they aren't the kind of hamster you can hold and stroke, instead, they are hamsters to watch as they run on their wheel (at lightning fast speed) and play with siblings (they are social, so can live in pairs). Their's original habitat is in the Mongolian steppes.
Roborovski hamsters are particularly hard to tame because of their character, size and speed. It is recommended to buy Roborovski's in pairs, mainly as watching two play together is much more fun than just one.