Product size: cylinder height is about 44mm, diameter is about 51mm Pakage include : 1 roll 0.5mm string , 100 meters , about 32g *VALUE PACK OF ELASTIC STRING: Our elastic bracelet string is ideal for bracelet making, jewelry making, beading, necklace making and other art craft projects. *EASY TO USE AND CARRY:The elastic necklace string is easy to go through the beads and tie knot. Easy to hide the knot behind the beads. Easy to carry everywhere to do your DIY craft. *CAREFULLY SELECTED MATERIALS:This elastic beaded string is selection of imported crystal wire, tested at high temperature and constantly strong, actual measured elasticity with good flexibility and easy to tie. *DIY ELASTIC STRING:The elastic crystal beading cord is sturdy, the texture is strong and durable, and the thickness is even enough to make crafts, which is suitable for all your DIY whimsy.