The Jetstream series is known for its addictive, smooth writing feel. This 4&1 multi-function pen features a 0.5mm four-color ballpoint pen (black, red, blue, and green) and a 0.5mm mechanical pencil.

The Jetstream 4&1 BAMBOO is crafted from bamboo, a material that combines lightness and durability.

This pen uses bamboo for the barrel, based on the concept of "everyday writing tools for a lighter, more comfortable life." Taking advantage of the beauty of bamboo, the design evokes its lightness down to the finest details, and the mellow, gentle coloring blends seamlessly into everyday life.

Bamboo grows quickly, making it an abundant resource. Its light appearance and durability make it an environmentally friendly material used worldwide for a wide range of applications, including cosmetic containers, household items, and furniture. Enjoy the unique individual differences that only natural materials can offer.