The Pentel EnerGel BLN105-C is a retractable gel pen with a fine 0.5 mm needle tip, offering smooth and precise writing. It uses quick-drying EnerGel ink that resists smudging, making it ideal for both left- and right-handed users. The pen features a translucent blue barrel to check ink levels and a comfortable, latex-free grip for better control. Refillable and reliable, it’s perfect for everyday writing.