econotes Rechargeable Gel Pen The erasable ink of econotes friction gel pens allows you to write, draw and erase as many times as you want. The thermosensitive gel ink is erased by friction thanks to the wear-resistant eraser tip at the end of your pen. The friction effect allows you to increase the temperature of the ink to over 70°C and erase your notes. Refillable very easily with the refills available on our site. Suitable for stone paper, synthetic paper, wood paper. Even more efficient with your Econotebook The ultra-resistant stone paper of your econotes reusable notebook allows you to erase your writing several hundred times without altering the quality of the paper.