1.easy to write one and one off use. 2.soft PVC material, non toxic 3.different colors are available identification bracelet:1) Made from PVC, do no harm to the skin, the SGS testing report is available when required.2) Hospital use: has write-on and insert card types, also can be used as promotion gifts.3) Colors: blue, pink, white, yellow, grey, green, transparent , black , purple , red , etc.4 ...