Package content: You will get 20 pieces of eyeglass chain ends, the size is about 20*5mm, which can meet your daily use and replacement needs. Material: This glasses chain connector is made of high-quality rubber and metal materials, durable and not easy to damage. The rubber ring is soft and durable, and the metal material provides a firm connection. Dry Clean Only Fastening: Adjustable Classic YD-KTJGJYJLJQ01-CX-BK20 EXQUISITE DESIGN: Our adjustable eyeglass chain ends are designed for convenience and ease of use. Simply slide one side of the silicone ring onto the arm of your glasses, then attach the other side to a chain or DIY decorative necklace. This way, you can easily adjust the length and fastening of the chain to suit different glasses and personal preferences. WIDELY USE: Our eyeglass chain loop holder is suitable for short glasses, sunglasses and any glasses that require the end of the eyeglass chain. They provide you with a convenient and secure way to attach eyewear chains to keep them from getting lost or slipping.