What is there left to say about 3D printing pens? Not much, because the vast majority of these items look like they were churned out at the same factory in Asia (and, in many cases, probably were). Nonetheless, we'll say what we can about the Morphpen Professional 3D pen, even if it sounds pretty much like what's been said about every other 3D printing pen on this website.
For starters, it looks more like a high-tech plastic surgical instrument than a pen, with a tapered body that allows for a secure grip on the end where you hold it and becomes relatively narrow toward the business end. The Professional comes with a pair of heating caps, for generating slightly different widths of extruded plastic lines. There's a brightly lit OLED display on one side that's remarkably readable considering how small the text is, though presbyopic users may still need to put on their reading glasses to make out the temperature gauge. You can set the target temperature within a narrow range and a heating element in the pen's tip should hit that target in less than a minute, so that impatient users (and children, who will probably make up the bulk of those users, are notoriously impatient) won't have time to check Instagram on their smartphones before the unit is ready to go.
The Professional comes with five neatly looped ABS filaments in multiple colors, so the unit is good to go right out of the box, once it's been plugged in and turned on. The supplied power brick is big enough to take up at least two sockets worth of space on your power strip, depending on how the sockets are oriented. The controls allow you to set the pen for ABS or PLA filaments, which feed into the end opposite the heater.
And that, as the saying goes, is all she wrote, though in this case that anonymous "she" was probably writing plastic calligraphic sentences in thin air. Amazon users currently give it five stars, except for the troll who gave it one star without even owning one. Other largely identical pens on this website include the Sketchpro 3D Pen, which is a bit curvier than most 3D pens, and the Ranphy 3D Printing Pen.
I like that it has 6 speeds and they're great for larger scale projects! The fast speeds plus the automatic extrusion are great for big projects.
It was really great to play with. Made a puppet and had a great time overall. It was very easy to use and sculpt anything.