3D PENS

A 3D pen is a handheld device that allows users to create three-dimensional objects by extruding heated plastic filament. It operates similarly to a handheld 3D printer, where the user controls the movement of the pen to build up layers of melted plastic, which solidify almost instantly as they cool down. These pens typically use either PLA (polylactic acid) or ABS (acrylonitrile butadiene styrene) plastic filaments, which come in various colors