I have customized a multi-function pen, the Pure Malt Premium 3&1, with Desert Ironwood. It has 4 functions (black, red, blue BP + 0.5mm SP) and a pendulum mechanism. The ballpoint pens use the 4C standard, and Jetstream refills are compatible. Multi-function pens with wooden shafts are rare. With 4 functions in one pen, why not add one to your pen case? The pen is new. I am not considering discounts. There is no warranty. For those who understand handmade items, how about it, including shipping? It will be shipped in a box via Takkyubin Compact. Shipping will be on weekends due to my schedule, so it will take a little time. □ Desert Ironwood A valuable wood, also known as the "gem of the desert," with a glossy, reddish-brown base and black stripes. Thank you for viewing. I love stationery and use Jetstream and Dr. Grip 4&1 pens. I dislike the deterioration of the rubber grips, so I started making them for myself using scrap wood from the famous trees I used to collect. You can customize these practical pens to your liking, just like changing your smartphone cover. I hope that the wooden shaft pens and wood parts I create can be of some help in your daily work, studies, tests, certification exams, and entrance exams. For those who like handmade wooden shaft pens, those who like the works of wooden shaft workshops such as Craft A, Nohara Kougei, Koubou Setsuri, Kobuta Koubou, etc., and those who like multi-function pens such as Jetstream 4&1, Dr. Grip 4&1, and Pure Malt Premium 2&1, how about it? I create them using famous woods such as Karin Kome, Karin Kouhaku, Snake Wood, Pink Ivory, Desert Ironwood, Kurogaki, Kurogaki Peacock Grain, Rosewood, Ebony, Sandalwood, Palo Santo, Briar, and Rosewood. #jnsm