... screen printing, 4c offset printing6) Perfect for premium gifts, advertise for sport, medical, commercial, party. ... Material:100% eco-friendly tyvek materialCertificate:SGS, RoHS, ISO, SEDEX certificate can ... Weight:0.5 gPacking:1)1000pcs in a big polybag 3)10 bags/CTNCarton ... KG/CTN factory make tyvek wristbands for your promotion, party and events ...