0.5 mm, Black ink
It is a compact size ballpoint pen that goes into your pocket.
When using it will be the length of the normal pen by inserting the cap into the back of the body.
This pen's refill ink is ASIN: B071XFXJB9

Technical Details

Product Details

Package Dimensions
Width : 0.47 inch
Height : 0.47 inch
Length : 4.96 inch

Shipping Weight: 2.4 ounce (View shipping rates and policies)

ASIN : B072P5Z3QJ