My yorkie weighs a little over 4 lb and she just started going up and down them herself. She really thought she was doing something and ran up and down them every chance she got for a while.
__________________  Bandit-9 yr Boxer, Sawyer-5 yr Boxer, Maggie 2 yr old Doxie  Isabella-3 1/2, Colby 1 1/2 yr Yorkies |