Size Details -- Package includes about 1 roll of solid rubber cord in black color, size is about 0.23 inch/6mm thick, about 16.4 yards(15m)/roll Premium Quality -- The rubber cord is made of high quality synthetic rubber, strong and durable, and can be used for a long time. Very hard to break. Rubber solid tubing can be cut into the desired length at will Features -- Synthetic rubber cord is solid, tightly woven on the outside for strength, making it the perfect elastic, 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 together, convenient to use and easy to store Wide Application -- Ideal for laminated travel notebooks, elastic chains, collars, bracelets, garments, bags, and making rubber bracelets with charms, glass beads and European style beads. Very versatile