Runs super-quiet, large enough for the gerbils to bring any holding losses, no shear effects where the little ones what could pinching, no cross member that would make the lolloping race impossible, totally smooth for fast starts and abrupt stopping, closed tread without sprains for small paws, natural material that needs being brushed only as needed with Sabbelack (if it should be used as a toilet) ... What more could you want?
