Yes, many indestructible dog toys do come with either a guarantee or a lifetime warranty. It is important to note that no dog toy is truly indestructible and through use and age, even the toughest dog toy can become worn or cracked. However, some companies are so sure of the longevity of their toys that they offer replacements or refunds if the indestructible dog ball or toy breaks through normal use by your power chewer. It is important to check the small print as there are always some conditions and some dog breeds that are exempt from the guarantee.\r