1. Dia:1mm 2. Length:1cm,1.5cm,2cm-up 3. Use: stationery,jewellry box,make-up box,bags,fixing Elastic ... .2. Stable structure, is not easy to scratch or depress.3. Usage cycle is long,high strength, not deform, notrust, 4 ... ,cotton,metal barbs,2. Colors and sizes: any are available,3. Package: inside is plastic bag,outside is carton,50pcs/bundle 1000pcs ...