THE GAP TAPE: Is truly a unique product.
It is the only dual function normal and internal
tape measure in the world. It is Simple, Accurate, and there is no need to bend the blade.
Its double-sided printed blade means it measures internal spaces with the same effortless precision as normal measurements. With normal measurements on the top of the blade, the reserve blade markings take into account the tape case dimensions, so when you measure internal spaces you simply butt the case up to the end and read the measurement.