http://www.amazon.in/Rotring-Drawing-Mechanical-Pencil-1904359/dp/B00JPL7YEA

This lightweight pen and pencil is an efficient multifunctional technical tool for all your writing, drawing and sketching needs.
The innovative "magic view" pendulum system lets you switch from a pencil, red pen, or black pen with a simple twist and push.
The plastic body is lightweight. The triangular barrel provides an ergonomic grip for relaxed drawing and won't slide on tilted tables.
The Softtouch rubberized grip provides great comfort during use.