Bluecode manufacture “Write & Seal” labels. These labels have a protective flap attached that allows you to add variable data with a standard ball point pen before sealing the clear attached strip totally over protecting the whole label from rubbing, cleaning & solvents as well as ensuring that added information is not changed. This type of label is predominately used in the PAT Test & Calibration industry but can be used in any application where the customer needs to add variable data & over protect the information.