Size: 1.0 mm in diameter Feature: elastic stretchy Material:thread colour:black Package Contents: 2 * Beading Cords & Threads Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. STRONG AND STRETCHY: The elastic string stretchy is made of elastic rubber and coated with fabric, it consists totally 4 elastic cores, which makes it strongly elastic and durable for long time use. Thick and hard to break, sturdy enough to secure your bracelets / crafts EASY TO WORK WITH: The necklace string for kids is easy to cut and tie, flexible and relatively easy to knot while you are working with it. Don't need to make many knots to secure it WIDELY APPLICATIONS: Our elastic cording for bracelets are great choice for many uses, you can use it for beading (bracelets, necklaces, and other jewelry making projects), sewing (mask, hats, sleeve, skirt and other sewing projects) and holding (traveler notebook, hair bands and so on)