Xiaomi Mi High-capacity Gel Pen (10-Pack) Basic Specifications Product model: MJZXB02WC Shelf life: 2 years Product color: black Product quantity: Pack of 10 pens Product specification: 0.5 mm refill gel pen 4x writing lengthLasts longer than a normal gel pen Japanese MiKuni inkDries quickly without blotting 0.5 mm spring bullet nibGlides smoothly across the page One time purchase for long term use What's in the box 10 x Gel Pens