Platinum Fountain Pen Drafting Sharp Professional Use 171 Matte Black 0.5mm MSDA-2500B

[Body size] Total length 144.5mm x maximum shaft diameter 10.0mm [Weight] Weight 23.7g [Feature 1] Equipped with snork system/adjustable writing feel [Feature 2] Adjustable sharp core pipe [Feature 3] Core cushion can be turned on and off