Description Are you looking for a professional, yet affordablefountain pen inkrefill? Are you in search of a sturdy, trustworthyfountain pen inkrefill for your kids? If so, look no further! Our professionalfountain pen inkrefill must meet your needs. Thisfountain pen refillis one of the best choices for you. Features -Color:black -Material:Plastic, ink -Size:5.00X0.70X0.70cm/1.97X0.28X0.28in -Inner diameter:3.4mm -Outer diameter:5mm -Capacity:about 0.9ml - Lightweight and compact, easy to carry. Simple and generous product appearance design. - Not easy to deform, it's convenient and durable. You can use it with confidence.Built with strong and durable material to withstand continuous use. - Thisfountain peninkrefill design conforms to the ergonomic design, easy to install and use. - From the overall design and finish, exquisite workmanship would be seen. -Share it with your family because it is practical. It can bring you good usage experience. Package List10 x Fountain Pen Refills