The ink pen we're using here, manufactured by Pilot, turns transparent after it is heated to 140 degrees or greater. That means you don't need an eraser. You just need to add heat to make it ...

It is called the HeatVanish Pen and works by using heat sensitive ink that turns clear when hot. The pen is equipped with an electric heating element on the end which works as your rubber. It can ...

However, throughout the years, many manufacturers have developed blue rubbers that can erase ink from paper. They're usually identified by a small picture of a pen on the rubber.