This is an original vintage 1970's-80's Sears Roebuck and Company Penske compression tester with the original Styrofoam tray and the instructions with the extra O ring and valve stem. It works as it should and I don't see any cracks in the hose but it is stiff and I folded it out to check it for cracks and it is stiff but not damaged. It's got the same plug threads as the older Chevrolet had. View the pictures and ask any questions.