TUZU is a fountain pen that can adjust to user habits. Product characteristics: Stainless steel nib: Crafted with Sailor's renowned quality, ensuring a smooth and consistent writing experience. Rotating nib feature: TUZU Adjust fountain pen equipped with rotating nib feature, enabling nib angle/grip position changes. Fine angle adjustments at 10-degree pitches, so everyone can find their own comfort zone regardless of writing/gripping habits. Natural fit grip: Two gently sloped sides for a natural fit in your fingers. Ample contact surface enables stable gripping. Type: Converter & cartridge *Converter fitted inside fountain pen. Material: Cap/Barrel/ Grip: Recycled polycarbonate Gripping section: ABS resin Metal parts: Nickel chrome plating Size: Ø 17.5 x 135mm (including clip) Weight: 20g Made in Japan: Each TUZU fountain pen is meticulously crafted in Japan, adhering to the highest standards of craftsmanship.