Dog collars and leads are made with high quality materials and are sewn with care; however this is a handmade item and as always, caution should be taken to ensure there are no injuries to your beloved pet. Please check for wear and tear on a regular basis and always keep an eye on your pup when worn or being used. We are not responsible for any injury through the use of our product. Information on the materials used in our collars and leads can be found on the individual product pages.