This product key label is a white label that accompanies the installation CD/DVD/USB and Certificate of Authenticity (COA) for a product and contains a 25 character product key. In addition to the barcode and product key there is a small amount of print on the left edge and the top right corner. On close inspection (a magnifying glass may be required) the name “MICROSOFT” can be seen in blue in the left side and in green on the right side. The product key label should not be purchased separately.