Stabilo OHPen Universal Permanent Pen Black for PAT Test Labels

Stabilo OHPen Universal Permanent Pen Black for PAT Test Labels - Fed up trying to find a pen that works on PAT test labels? I know I was until I used these. Works on all PAT labels including gloss finish labels. These do not smudge like gel pens you don't have to press hard like when using a biro and best of all they dont seem to fade over time also they have a fine tip so you can get all the details such as your initials and the full test and retest date on the label.