Thank you for viewing! This is a modified rubber grip section for a Jetstream 4+1, converted to stabilized wood. This listing is for the metal grip section and the wood part only. The pen body is not included. There is no warranty. 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, and with shipping included, how about it? Stabilized wood is a hybrid material, both artificial and natural, made by impregnating natural wood, such as maple, with a special resin to improve strength and prevent expansion and contraction. It is completely dyed throughout, so the color remains the same even when carved. Also, due to the effect of the resin, a beautiful luster appears when polished in the final finish. 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 before. You can customize these practical pens to your liking, just like changing your smartphone case. I hope that my wooden pen shafts 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 pen shafts, those who like the works of wooden pen 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 use famous woods such as Karin Kobu, Karin Kouhaku, Snakewood, Pink Ivory, Desert Ironwood, Kurogaki, Kurogaki Peacock Grain, Beniki, Ebony, Rosewood, Sandalwood, Palo Santo, Briar, Rosewood, Satine, and acrylic resin to create them. #jnsm