Stop Look More Parts Inside, Fluorescent Paper Labels, 500 Labels / Roll, 4.5" x 2" Labels help avoid the problems that occur when a package contains multiple or small parts. Fluorescent green shipping labels have an aggressive adhesive that is designed to stick to corrugated cartons, shelving, skids or shrink wrap. Our labels come with a peel-off liner and are packaged in a roll of 250 labels.