material: nitrile rubber; Color: blue and white, it is variable to provide other colors according to demands; Certificates and reports: ISO9001 quality system certification, ISO13485 quality system certification, MDSAP certification,USA FDA certification, EU CE certification, Japan medical device certification, Canada medical device registration certificate and China medical device registration certificate;ASTMD6319、EN455 and GB/10213 test reports; Product use: suitable for medical examination, dental treatment, medical nursing, home nursing, laboratory and other relevant field.