This Indian school pen – the Classmate Octane – was sent to me by a kind viewer.
Measurements
Length (capped): 143.7 mm/5.65″
Length (uncapped): 135.5 mm/5.33″
Length (posted): 158.2 mm/6.22″
Diameter (barrel): 10.2 mm/0.40″
Diameter (section): 9.0 mm/0.35″
Weight (all): 10 g
Weight (cap): 2 g
Weight (body): 8 g