Advent Tools’ new 2-in-1 tape measure works as a standard tape measure on one side and for internal measurements on the other.

To take the internal measurement, the user simply locks the blade at one side of the space to be measured and rest the back of the tape at the other edge.
The case dimensions are taken into account on the reverse and the reverse printed measurements are clearly marked to ensure accurate measurements without needing to re-measure or take account of the tape flexing.
The tape has been designed to give a perfect right angle every time.