What goes on inside your retractable leash is a complex mechanism with springs, coils, buttons, levers etc. etc. etc. Each part is crucial for optimal performance of your Wigzi leash. If any one part breaks then the whole thing usually just taps out. With that being said we want you to have the leash for years and trust Wigzi and come back and buy more and the only way to do that is to invest in quality. We've grown to be an international pet products brand and want to keep i