You will receive 30 stainless steel chains in 3 different styles, with lengths of 45 cm/17.72 inch and 50 cm/23.6 inch respectively, and thicknesses of 1.5 mm and 2 mm, which can meet your different needsPremium Quality -- This necklace is made of high quality stainless steel material, which is comfortable to wear and won't fade over time, and the locking clasp is of good quality and very strong, so you don't have to worry about it falling off when you are exercisingStylish Design -- With its simple yet fashionable design, this necklace cord adds a touch of elegance to any outfit, making it perfect for daily wear or special occasions. Show off your elegant temperamentEasy to Use -- The chain comes with a clasp, simply fasten them together. Convenient storage, the chain can be stored in rolls, easy to store for next time use to meet your needsWide Application -- This necklace chain is suitable for DIY jewelry making, allowing you to create customized necklaces that reflect your personal style and creativity. It is also perfect for a wide range of occasions such as family gatherings, weddings and friends' parties