The daughter of my breeder does agility lessons in their backyard. The equipment is appropriately sized for chihuahuas. Sapphire has been to 10 lessons. She has come a long way. She doesn't care for the tunnel and is still learning the teeter (last station on the video). It's really fun doing it with her. I would like to try her at a competition. A couple months ago she didn't even know how to jump over a hurdle.