A very kind thank you to to Brian Goulet and Inventery for supplying most of these products! I thought it would be interesting to do a quick overview of some of the rollerballs that you can purchase that actually use fountain pen ink, because sometimes a fountain pen just won’t work you just have to use a rollerball.
This pen was kindly lent to me by Joost Appelboom. Don’t forget to click the Appelboom banner on the right to obtain a 10% discount on your order (excluding Montblanc).
Measurements
Length (capped): 149.6 mm/5.89”
Length (uncapped): 137.2 mm/5.40”
Length (posted): N/A
Diameter (section): 11.1 – 13.0 mm/0.44” – 0.51”
Diameter (barrel): 13.0 – 15.9 mm/0.51” – 0.63”
Weight (all): 34 g
Weight (cap): 18 g
Weight (body): 16 g
This pen was kindly sent to me by Laban!
Measurements Length (capped): 150.0 mm/5.91″ Length (uncapped): 131.3 mm/5.17″ Length (posted): 172.3/6.78” Diameter (section): 10.0 – 12.1 mm/0.40″ – 0.48″ Diameter (barrel): 10.1 – 13.7 mm/0.42″ – 0.54″ Weight (all): 36.0 g Weight (cap): 22.5 g Weight (body): 13.5 g 
This pen was kindly sent to me by Nino of Maiora Pens, the creator of these new Nettuno pens.
Measurements
Length (capped): 135.7 mm/5.34″
Length (uncapped): 130.6 mm/5.14″
Length (posted): 159.55 mm/6.28″
Diameter (barrel): 11.0 – 13.4 mm/0.43″ – 0.53″
Diameter (section): 10.9 – 11.3 mm/0.43″ – 0.45″
Weight (all): 39 g
Weight (cap): 12.5 g
Weight (body): 26.5 g
This pen was kindly lent to me by Appelboom. Don’t forget to click the Appelboom banner on the right to obtain a 10% discount on your order (excluding Montblanc).
Measurements
Length (capped): 143.8 mm/5.66″
Length (uncapped): 127.9 mm/5.03″
Length (posted): 155.3 mm/6.10”
Diameter (section): 10.5 – 12.6 mm/0.41″ – 0.49″
Diameter (barrel): 8.9 – 13.3 mm/0.34″ – 0.52″
Weight (all): 47 g
Weight (cap): 18 g
Weight (body): 29 g
Let’s have a look at the OMAS 360 in the beautiful Wild celluloid.
Measurements
Length (capped): 147.7 mm/5.82″
Length (uncapped): 130.1 mm/5.12″
Length (posted): N/A
Diameter (section): 11.3 – 13.1 mm/0.44″ – 0.52″
Diameter (barrel): 13.5 – 14.8 mm/0.53 – 0.58″
Weight (all): 28.5 g
Weight (cap): 19.5 g
Weight (body): 9 g
Let’s have a look at the Franklin-Christoph Model 66 Pocket fountain pen.
Measurements
Length (capped): 129.4 mm/5.10″
Length (uncapped): 123.0 mm/4.84″
Length (posted): 142.3/5.60″
Diameter (section): 10.4 – 12.6 mm/0.41″ – 0.50″
Diameter (barrel): 8.3 – 14.0 mm/0.33 – 0.55″
Weight (all): 14.5 g
Weight (cap): 12 g
Weight (body): 2.5 g
These pens were kindly lent to me by Additive Pens.
Measurements
Length (capped): 169.3 mm/6.66″
Length (uncapped): 150.4 mm/5.92″
Length (posted): N/A
Diameter (section): 10.1 – 12.0 mm/0.40″ – 0.47″
Diameter (barrel): 12.8 – 17.1 mm/0.50″
Weight (all): 25 g
Weight (cap): 15 g
Weight (body): 10 g
These pens were kindly sent to me by Ferris Wheel Press.
Measurements
Length (capped): 143.3 mm/5.64″
Length (uncapped): 128.3 mm/5.05″
Length (posted): N/A
Diameter (section): 8.0 – 9.2 mm/0.32″ – 0.36″
Diameter (barrel): 6.0 – 10.5 mm/0.24″ – 0.41”
Weight (all): 23.0 g
Weight (cap): 16.5 g
Weight (body): 7.5 g
Time to look at my new pen.
Measurements
Length (capped): 165.4 mm/6.51″
Length (uncapped): 144.2 mm/5.68″
Length (posted): 181.8/7.16”
Diameter (section): 13.3 – 15.8 mm/0.52″ – 0.62″
Diameter (barrel): 12.4 – 18.0 mm/0.49″ – 0.71”
Weight (all): 49.0 g
Weight (cap): 33.0 g
Weight (body): 16.0 g
