DescriptionMade of high class stainless steel, plastic material. A simple plunger driven ink container refills easily to use liquid ink neatly and conveniently with your fountain pen. Liquid ink is smooth flowing, leaves a solid, confident line, and adds to the sophisticated experience of fountain pen use.Features-Color:Black, Red -Material:Plastic, Stainless Steel -Size:7.50X0.80X0.80cm/2.95X0.31X0.31in -Made of sturdy and durable materials, these ink absorbers can withstand continuous use. -They feature a simple design, but they are very practical to use and brings you a lot of convenience. -They are not easy to deform and break, convenient and durable for long time use. -The product design conforms to the ergonomic design and are easy to install and use. -Excellent workmanship and fine details ensure their popularity and durability.