Size Details -- Package includes about 1 roll of solid rubber cord in black color, size is about 4mm thick, about 16.4 yards(15m)/roll. Wrapped around white plastic spool which is convenient for you to use. Premium Quality -- The elastic cord is made of high quality PVC hose rubber, strong and durable, and can be used for a long time. Long last lifetime. Features -- Black leather cord is solid, tightly woven on the outside for strength, can be used for a variety of jewelry design and embellishment, or home decoration. Convenient to Use -- They are packed in roll, you can cut into any length and wrap the rest cord around the spool, convenient to use and easy to store. Wide Application -- Ideal for laminated travel notebooks, elastic chains, collars, bracelets, garments, bags, jewelry accessories and other decorations.