The CritterTrail Outhouse was developed to take advantage of your small animals natural instinct to go potty in one specific area of their home. CritterTrail Outhouse snaps directly onto your CritterTrail home and it comes complete with free sample of Potty Litter and sifting scoop to help with cleaning the litter. Yes, you really can potty train your small animal pet! For: Hamsters Mice & Gerbils