Retractable pen (click pen): How it works on Make a GIF

Zebra Pen Z-Grip Elite Retractable Ballpoint Pen, Metal Barrel, Medium Point, 1.0mm, Black Ink, 7-Pack (27617)

Retractable Fountain Pen - Press Type Refillable Ink Writing Pen, Calligraphy Fountain Pen with 20 Ink (10 Black,10 Blue), Retractable Press Pen For Smooth Writing Stunning Pen Gift Set (Blue)