... seal kraft bubble envelopesRemarks:i:be used to post tape,CD,camera lens,film,certificate,IC card,mini-type machine accessory ... and so on goods that need protection.ii:PE bubble film inside and craft ... OTHER RECOMMENDED STANDARD SIZE(BROWN,GLDEN,WHITE)(INSIDE IS POLY AIR BUBBLE,OUTSIDE IS KRAFT PAPER) iii)contact informationMichael ChanWelcome all ...