"We recently bought a 2 year old female ferret from craigslist. Her name is Isabella and for 2 years of age, she's very petite. We bought the pink/green harness for her and thought "Oh, we get to walk her everywhere now!" WRONG! We strapped it on her, she ran under the bed, came back out, and the harness was off and stashed in her hiding spot. Next day, we try again... This time with ferretone. She didn't squirm at all and she managed on the harness/leash fairly well. Then, it slipped off again. We can't use it at all, and it doesn't adjust to a smaller size. We're going to return the harness and buy her an extra small size. I think this harness is only meant for very large/fat ferrets, or any animal other than ferrets. Our rabbit, for instance, is way bigger than Isabella... He'd fit in it better. JUST A SHOUT OUT TO FERRET OWNERS!"