It is designed for finding out the deformation and strains on cement and concrete cylinders when subjected to compressive loads. Consists of a frame with a bottom ring and a top ring with tightening screws to firmly clamp the compresso meter over the cylinder. A dial gauge is mounted on the upper ring and the tie of the dial gauge rests on an anvil. The zero on the dial gauge can be set by adjusting the anvil screw. Supplied in a wooden carrying case.