There are many versions of the popular Dr. Grip in Japan. This particular line has an "Off Road" image with bold body colors and a firmer grip. The pen body is even customizable. Each pen comes with a clear plastic insert that can be removed from the pen body, decorated, and reinserted to make your very own personalized pen. It's a very innovative way to customize pencils in low quantities, making them perfect gifts for friends, office parties, and more. One plastic insert included inside each pen.
See how you can just shake Shaker Pencils to advance more lead in the video below: