TWSBI Diamond 50 Ink Bottle Color:Black the center of gravity of

the center of gravity of the pen is tilted towards the tip

Ebonite feed for generous

jeans inspired paper box

pre-fitted with a CON-40 converter

Converter sold separately here

TWSBI Diamond 50 Ink Bottle Color:Black the center of gravity ofTWSBI Diamond 50 Ink Bottle TWSBI Diamond 50 Ink bottle: designed for every type of fountain pen, and with an upper cap designed specifically for the TWSBI Diamond , 530, 540, 580,Mini fountain pen. The TWSBI Diamond 50mL ink bottle is a perfect accessory for any fountain pen addict! The bottle allows for easy refilling of your fountain pen by offering an upper reservoir that fills with ink when you turn the bottle upside down (cap on of course!) The