This pen was kindly sent to me by Kate of BENU.

Measurements
Length (capped): 142.9 mm/5.63″
Length (uncapped): 135.2 mm/5.32″
Length (posted): 173.7 mm/6.84″
Diameter (barrel): 12.3 – 14.3 mm/0.48″ – 0.56″
Diameter (section): 10.0 – 11.0 mm/0.39″ – 0.43″
Weight (all): 28.5 g
Weight (cap): 15.0 g
Weight (body): 13.5 g