The Orenz AT mechanical pencil features an automatic lead-advancing mechanism that lets you keep writing after one knock, along with a dual metallic grip.
Features
Lead diameter: 0.5mm
Barrel color: Gray
Size: W12 × D11 × H136mm; weight: 15g
Materials: tip, front barrel, and knock button: brass; rubber grip: silicone; rear barrel: ABS; clip: iron