The official size of C-3PO is 1,65 m, 275 mm in 1/6 scale. The Medicom toy C-3PO is 280 mm.
The official size of R2-D2 is 0,96 m, 160 mm in 1/6 scale. The Medicom toy R2-D2 is 155 mm.
The difference betwen those droids (1/6 official size) is 275-160= 115 mm
The difference betwen those...