Hamsters and gerbils exercise in style.
Create a safe, controlled exercise environment. Cruiser runs on hamster
power. Works on the track, on the floor, or just spinning in place.
Hamtrac works with all three sizes of Run-About balls (below) and the
Cruiser Car. Includes 8 pieces of trac, - 4 curves, 4 straights.
Mini Ball for mice and dwarf hamsters; approx 4.5" diameter
Regular run-About Ball for hamsters, gerbils etc; approx 6.5" diameter