Equipped with one graphite lead for marking and writing on all material surfaces. Exchangeable special lead is also suitable for dusty, rough, oily, and damp surfaces. Can be wiped off smooth surfaces. Features automatic lead feed in a stainless steel tube, and is extremely durable due to high-quality workmanship. Includes a fail-safe and easy-to-grip quiver protector with a special holding clip, and an integrated lead sharpener in the protector.