Double Layer Black Butterfly Leather Cord NecklaceSize Sheet Product Details The chain length is about 36cm, and the extended chain is about 5cm. The product dimensions are measured manually and may have some errors. Maintenance and attention: avoid contact between chemicals (such as perfume, skin care products, bath gel, etc.) and sweat, and be sure to keep dry and clean; Store separately in a sealed bag when not in use; Avoid wearing it during vigorous exercise or swimming; Avoid wearing and