SSR60412 In the wild; gerbils and dwarf hamsters will roll in dust to keep their fur from getting too oily; matted; and dirty. You can give your pet this same ''bath'' with Critter Bath Powder. Your little guy will love this fine dust-grade mountain pumice; and you'll love his soft; shiny coat. Critter Bath Powder works great with the Super Pet Ceramic Dust Bath. For hamsters; mice; gerbils; chinchillas etc.