"TWSBI ECO" Twisby Eco Standard with the origins of the popular colorful pen TWSBI The name of the ECO is derived from economic= reasonable price. This is an entry model that meets all the requirements required by a genuine fountain pen at an affordable price. TWSBI ECO-T is a derived from the TWSBI ECO series with a soft triangular cap. The grip has been improved to ensure that the handle stays in place. It is gentle on your fingers, even when writing for long periods of time. The nib is made with over 40 years of experience and technology that has accumulated in writing instrument manufacturing for a smooth writing experience. The highly skilled and sophisticated stainless steel nib smoothly runs on paper for inspiration. In addition, it is equipped with a mechanism that allows you to easily suck ink at about 0.07 fl oz (2 ml) of ink, so it won't run out of ink even when carrying or extended periods. The coloring is based on the psychology of color and the careful research of writing instrument enthusiasts, and the colors are selected by multiple prototypes. In addition, the body uses a skeleton body so you can not only see the remaining ink level inside, but also enjoy the ink color at the same time. You can also use the included wrench to disassemble and clean the ink. You can easily maintain your favorite eco-friendliness. ECO matches your favorite ink colors and coordinates with your bag, pencil case or notebook. In addition, it can be enjoyed by a variety of different ages and genders depending on the season and mood. [TWSBI ECO-T Clear] A derived model from the TWSBI ECO series with a soft triangular cap. The grip has also been improved and the design has been changed to make sure the handle stays in place. This is a basic skeleton model that you would like to collect in a repertoire. The colors of the ink that flickers in the crystal like body will delight your eyes. Transparent (Clear) means starting and purification, making it perfect for your reliable partner when trying something new or changing your mood. Of course, it's also a business place. It gives you a clear impression that you will see ahead of it, and it will dye into your ink color.