FOR REFERENCE ONLY, Write-On Vinyl Label, Removable, 160 Labels / Pack, 2" x 0.5" Write or print calibration information clearly with a pen, pencil, felt-tip marker, stamps or printer. These unique imprintable calibration labels feature durable design that can help you comply with ISO standards. A heavy adhesive coating bonds to irregular objects and difficult surfaces. Calibration maintenance is a valuable method of saving money on costly repairs over time.