The Pentel Tradio produces a variety of lines depending on the angle and pressure applied. In the photo of the close-up nib, you can find the top and bottom plastic in different length. The top helps to hold the felt tip and allow more pressure to be applied to the writing. Because of the special design of tip, Tradio is also knicknamed as “plastic fountain pen”.

• Felt tip
• Black Ink (Water-based)
• Refill:Stylo Refill – MLJ20 – Black

In the 1993s Pentel released Tradio, which is an upgraded design of PulaMan/Stylo. It has a better tip, and a replaceable core. Even with the newly designed Tradio, Pentel still keeps the original design of PulaMan from 1978.