1000 Serial Number Bar code Labels 1-1/2" x 1/2" Sequential BarCode Stickers Roll - Consecutive number - Custom Printed Smudge Resistant ROLLS of 1-1/2 x 1/2 die cut round corner coated paper labels. Outline does not print. No Returns on Custom Printed Labels - Email requests BEFORE Purchase Printed with smudge resistant RESIN INK and verified with approved bar code equipment -not inkjet or laser on sheets. Perforated Between Labels - Permanent acrylic pressure sensitive adhesive See Product Description below - CLICK on TREK LABEL for more label types