The nut shown measures from 4.5 to 6 centimetres.
Something, perhaps a nut being measured on a measuring tape between the five inch mark and the 6 inch mark.
A nut is next to a ruler measuring between 4.5 and 6.4.
A brown nut measures around one inch across.
Ruler measuring a piece of nut which is currently on top of the number 5 and 6.