The Pentel Tradio Mechanical Pencil combines sleek style with innovative functionality. Secure cap protects the tip from damage or breakage. Multiple pieces of 0.5mm lead can be added by twisting off the upper part of the pen and uncapping the inner barrel. Cap posts securely and body fits comfortably in the hand. Side click to advance lead for uninterrupted writing. Smooth plastic body with soft finish. Color: Lemon Yellow. Capped length approx: 5 1/2". Posted length approx: 6 1/4".