Frixion "CLICKER" Erasable Gel Pens. Combines the convenience of "retractable" with the incredible FriXion erasable gel ink. Eraser is at the top of the pen tip. Retractable by pressing clip down Very smooth writing gel ink. Great for pattern transfer/design OR doing REDWORK. Ink will disappear once heat/friction is applied!!! (Please see pictures below.) No residue. No smudging or fading.