Just my thoughts.
Ensso Japanese Ebonite Fountain Pen Review
This pen was kindly sent to me by Ensso – thank you! Get yours here.
Measurements
Length (capped): 139.8 mm/5.51”
Length (uncapped): 128.0 mm/5.04”
Length (posted): N/A
Diameter (section): 10.6 – 12.5 mm/0.42 – 0.49”
Diameter (barrel): 11.0 – 15.1 mm/0.43 – 0.59”
Weight (all): 14.5 g
Weight (body): 11.0 g
Weight (cap): 3.5 g
Personal Pens: Shakour Titan
Consult the Doctor Episode 49
Parker 51 Plum (2021 Edition) Review

Measurements
Length (capped): 139.7 mm/5.50”
Length (uncapped): 118.2 mm/4.65”
Length (posted): 152.8 mm/6.02”
Diameter (section): 7.8 – 10.3 mm/0.31 – 0.41”
Diameter (barrel): 7.2 – 11.5 mm/0.29 – 0.45”
Weight (all): 25.5 g
Weight (cap): 13.0 g
Weight (body): 12.5 g
On Fountain Pen Nib Sizes: #5, #6, #7, #8
Platinum Star Wars Darth Maul Fountain Pen Review

Length (uncapped): 120.3 mm/4.74”
Length (posted): 154.2/6.07”
Diameter (section): 10.2 – 10.8 mm/0.40” – 0.43”
Diameter (barrel): 8.6 – 13.2 mm/0.34” – 0.52”
Weight (all): 19.5 g
Weight (cap): 9.5 g
Weight (body): 10.5 g