$500 OBO-Used DeFelsko PosiTest Adhesion Tester, Model AT-Manual. Comes with everything pictured in the case, does not come with 20mm or 50mm dollies (can be purchased through Acklands/Grainger) Used for and conforms to D4541-17 Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers