Printable one-side only, this is a bright white paper card stock material with a 125 lb (9.5 mil) cover weight plus a removable liner. We can die cut custom size and shape cards or tags into the sheets, up to 250 sheets in just 48 hours. The cardstock is not micro-perforated but actually die cut like labels on a sheet with no rough edges from perforations! The tags are in sheets ready for you to print on your inkjet or laser printer. The liner holds the die-cut tags into the sheet. Print quality is excellent on Heavy or Cardstock printer settings. This material is excellent for arts and crafts projects, printable invitations, announcements, custom business cards, hang tags, door hangers, business mailers and other card and tag projects.