VP Leather Berlin Collar Ultra soft Lambskin top layer (3.5 oz) Sturdy Latigo leather stability layer (6 oz). Nickel-plated hardware 2 wide collar fits 2 neck sizes 99 Years Unconditional Warranty. We are so sure in the quality of this leather masterpiece that we provide a 99 year warranty. If anything goes wrong with this fashionable collar, drop us a line and we will provide a replacement. No questions asked.