Defelsko DOLLY50 50mm Dolly, For PosiTest AT-A Automatic Adhesion Tester (Pack of 4) Go to amazon.com Related posts Check expert advices for positest ata 50? FeatureDefelsko dollyFor PosiTest AT-A automatic adhesion tester50-millimeters size DescriptionDefelsko dolly for PosiTest AT-A automatic adhesion tester. 50-millimeters size.