[Size] Total length 144.5mm x shaft diameter 9-10.2mm x maximum diameter 11.8mm
[Weight] 21g [Ball diameter] 0.7mm [Lead diameter] 0.5mm
[Material] Shaft, nozzle, knock, and crown: brass; Clip: SK material and POM
[Country of Origin] Japan
[Refill] R-4C7NP Black/Red (0.7mm)