Labels can be permanent or repositionable; once applied, numbers & letters are there to stay - unless you want to change them. Made of B-498 plastic coated cloth with pressure sensitive adhesive that sticks to any clean, dry surface. Choose from 8 different label sizes to best suit your needs. All 34 series labels are black on yellow. To order, simply select the marker size needed for your application then substitute the number or letter you need for the asterisk following the catalog number. Us