【0.4mm】 ・Blue ・Blue Black ・Black 【0.5mm】 ・Orange ・Blue Black ・Turquoise Blue ・Blue ・Black 【0.7mm】 ・Black ・Blue Black 【Manufacturer's Description】 EnerGel Infree is a ballpoint pen that not only helps you remember, but also sparks intuitive ideas and activates two-way communication through writing. From a simple ballpoint pen for taking notes to an "idea expression tool" that unleashes creativity.