Thank you for viewing! I have modified the rubber grip of a Jetstream 4&1 multi pen to a green canvas micarta grip. This listing is for the metal tip and wood parts only. The pen body is not included. There is no warranty. If it breaks, please reattach the original rubber grip. It will be wrapped in bubble wrap and shipped via Nekopos. Shipping will be on weekends due to my schedule, so it will take some time. For those who understand handmade items, how about it, including shipping? Micarta is a composite material made by layering materials such as paper or cloth and solidifying them with phenolic resin. It is lightweight, durable, and water-resistant, and also offers a wood-like texture, making it widely used for handles of high-end knives. Thank you for viewing! I love stationery and use Jetstream and Dr. Grip 4&1 pens. I dislike the deterioration of the rubber, so I started making them for myself using scrap wood from famous trees that I had collected. You can customize these practical pens to your liking, just like changing your smartphone case. I hope that my handmade wooden pen and wood parts can be of some help in your daily work, study, tests, certification exams, and entrance exams. For those who like handmade wooden pens, those who like the works of wooden pen 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 use famous trees such as Karin Kobu, Karin Kouhaku, Snake Wood, Pink Ivory, Desert Ironwood, Kurogaki, Kurogaki Kujaku Moku, Beniki, Ebony, Rosewood, Sandalwood, Palo Santo, Briar, and Rosewood to create them. #jnsm