You can get a free Mantoux Tuberculin Skin Testing Ruler! This is very handy.
Plastic ruler to use in measuring tuberculin skin test reactions. This ruler can be used multiple times.
How to Claim: Click request sample now, below, and then click on the dropdown menu that shays ‘Material Type’ and pick ‘Magnet’. In the box that says “Search For Text” you will put the code 997047 Then enter 1 in the quantity, add to cart and check out on the right hand side of the page.