Lanxivi Baoer 556 U.S.A No. 1 Air Force Shape Vivid Red Fountain Pen Nib Size : M , Cap : Push Type Capped length 138mm , Diameter 13mm & pen weight 35g Take Cartridge : International standard ( Fit the Jinhao cartridges in our store ) Package : One pen & one removable converter (work with all bottle ink )