Kaco Easy 4 in 1 Four Color Gel Pen Geometry The calculator runs on solar

The calculator runs on solar power

thick-to-thin lettering

the pens produce deep

The decoration tape enhances one's creations by adding something extra

Kaco Easy 4 in 1 Four Color Gel Pen Geometry The calculator runs on solarMultifunctional: The Easy 4 in 1 Gel Ink Pen serves as a versatile writing tool, offering four colors in one convenient pen. Interchangeable Gel Refills: The self developed gel refills are designed for modular pens, allowing you to switch between colors effortlessly. Bright Colors and Smooth Writing: Enjoy vibrant colors and smooth writing with this gel ink pen, enhancing your writing experience. Convenient Design: The pen features a press mechanism