TWSBI Diamond 50 Ink Bottles twsbivac700r Bottle cap can also fit

Bottle cap can also fit our Diamond 50 bottle cap

North America Package: Swipe pen

Light weight

Piston filler type fountain pen

TWSBI Diamond 50 Ink Bottles twsbivac700r Bottle cap can also fitTWSBI Diamond 50 Ink bottle: designed for every type of fountain pen and specific upper cap design for Diamond , 530, 540, 580, Mini fountain pen. No ink inside The TWSBI Diamond 50mL ink bottle is a glass bottle with anodized aluminum top that is the 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