This product is made of plastic materials, and practical. If you are looking for a pen ink absorption tool. Don't hesitate, our product is perfect for you, you can also give it as a present to your friends or family, they will love it. Solves the problem that most pens have of absorbing ink. The interface can be easily removed for cleaning. Features -Color:Multi -Material:Plastic -Size:7.00X0.80X0.80cm/2.75X0.31X0.31in - :3.4mm -Note:Without needle head - Refillable converter saves money while reducing waste associated. - Just pump the ink out of the bottle of ink and put in your fountain pen, convenient to use. - These ink absorbers can quickly and easily refill your fountain pen with bottled ink. - Made from stable and firm plastic material, so these ink devices can use for a longer time. - Practical function and fine workmanship, make it more fashionable among students. Package list: 12 x Fountain Pen Ink Absorbers