I have tried several different brands of retractable leashes. This is the 4th of this model. Not the fault of this model, I have a Siberian Husky, he likes to lunge at squirrels, cats, rats, raccoons, and other dogs. I have had that 65 pound animal lunge at a squirrel half way up a tree and stopped him in mid air. He is a sneaky one. Some times he will walk past another dog like he didn't notice, then do a 180° turn, jump, and lunge in a split second, and find himself again stopped in mid flight...