The "fullest" expert pack allows you to follow your first cracks in the 3 axes "opening" "shearing" "unflushment". It includes the DELTA L1 electronic measuring rule, the DELTA L2 measuring tool, 10 JC1 gauges allowing the monitoring of 5 cracks, 3 JC2 gauges allowing the monitoring of 3 cracks in shear and out of flush, 25 dowels to strike for fixing and manual.