About the Lamy CP1
 
Th Lamy CP1 ballpoint pen comes with a cylindrical metal body with a spring axle mounted stainless steel clip. The pen has a matte black finish and takes a medium tip Lamy giant M16 refill in black ink.

Product Specifications
Length: 5.5 in.(139.7mm)
Diameter of Body: 0.25 in.(6.4mm)