What - It is flat silk shape combination jewelry making cord, 50m/roll, 0.5mm in diameter, Weighs about 23g/roll. 0.5mm thick flat string, super thin but strong crystal bracelet making thread.The best choice for high grade jewelry. How - This Elastic stretchy string is flat, it has several thinner threads combined together, easy to tie a knot, not slippery and anti-fray. Super high elastic and top quality,Very stretchy and hard to break. Long last lifetime and great durability. Where - This beading thread is usually used as string for making gemstone bracelet, beads material such as crystal, agate, Jade Beads, Tourmaline, garnet, etc.... Also it is popular in school DIY craft class, used for kid's bracelets, Valentine bracelet,... Great for making jewelry components such as chain maille, beaded chain, jump rings, earwires, and wire wrapped pendants. Get - 1 Roll 0.5mm thick 50m long Elastic Thread + Free copper wire lead (with it, no needle needed anymore while beading). Attention:the bead bracelet in the picture is only for display, not included in the package. Enjoy and Have Fun - With these DIY cord, everyone including kids, children, teengagers, adults, elders, no matter how old you are, you will do it as your own willingness, choose beads you prefer to make bracelet. Develop children's DIY practical potential ability and coordination ability. Enjoy and have fun, adding happiness and creation for your daily life.