Material:The collar is made with eco - friendly and durable artificial leather on the outside, and a soft plush lining on the inside, which makes it breathable and comfortable to wear. It is hand - stitched with professional - grade nylon thread and equipped with high - quality nickel - plated hardware, combining a sense of fashion and durability. Design:This stylish punk necklace is designed to create bold and personalized outfits. The unique design of the O - ring and love lock can meet the various dressing needs of both women and men. This Gothic - style necklace features an adjustable design, which can fit different body types, and its light weight makes wearing it without any burden. Size:Total length: 20 inches，Width: 2 inches，Suitable neck circumference: 14 inches - 17.5 inches (with 6 adjustment holes designed) Warranty:High - quality materials and careful design ensure the long - lasting performance of the product. If the collar is damaged or fails in any way, we will replace it for free. If you have any questions, please feel free to contact us.