Uni Smudge-Proof Leads – 0.5 mm – HB – 40 Pieces

The core powder of these leads with a unique blend of ingredients provides high adhesion to the paper, so your writing stays clean and easy to read. This smudge resistance also makes these leads perfect for highlighting.These leads are also infused with nano-diamond particles for exceptional strength, smoothness, and darkness.The sliding cover design helps you to open the case easily.Size: 22 x 77 mm / 0.87 x 3.07 inches