Feature(may vary by option.)

●Shaft Diameter 0.1 x Total Length 5.7 inches (3.0 x 143.5 mm)
●Pack of 10 refills
●Ball diameter: 0.03 inches (0.7 mm)
●Ink Color: Blue
●Oil-based ballpoint pen refill; Size: Shaft diameter 0.1 x total length 5.7 inches (3.0 x 143.5 mm)

[Red 10pcs]

[Blue 10pcs]

[Green 10pcs]

Description

Easy to grip and less fatigue:
This is a refill for berry ravow Optimal viscosity makes writing very smooth and vibrant The main body is designed to provide a comfortable grip for anyone, and it is approximately 30% softer than conventional products, and a 0.4 inch (10 mm) longer grip.
The dimple provides a moderately curved grip so you can write without slipping.