- Thanks to their erasable gel ink, these 12 Gel-ocity Illusion pens disappear, neither seen nor known with their gum-cap - Their average tip of 0.7 mm allows accurate plots of 0.3 mm on average - These pens write in blue, classic color essential - Rubber grip provides better writing comfort - These erasable gel pens are also refillable. With BIC, products are made to last
