These label protectors are designed to be placed over spine labels to keep them from falling off and to protect them from damage during normal use of the item.
Specs:
Usage: Spine label (a bit smaller than standard book/circulation label sizes)
Mil Thickness: 4-mil
Material: Polyolefin
Adhesive: Acid-Free Acrylic
Finish: Matte
Quantity/Roll: 250/Roll
Overall Dimensions: 1-1/2″H x 2″W