*The cap can't be posted at the back of the barrel while writing*    
  TWSBI Diamond 580ALR Nickel Gray Fountain Pen
 Our ever popular 580AL now with matte finish, subtile details on the grip and cap. 
 New aluminum machined grip, connector, and piston rod.  
 Features
  Improved grip and end barrel section compared to 540 
 580 has increased ink capacity, about 30% more than 530 
 580 has improved the smoothness of cap thread turning 
 580 shows you our promise on continuous product improvement on small details 
 Please note : ink is not included 
  Comes with a small vial of silicone grease and a wrench for disassembly.