Posted by a reviewer on Amazon

There are 2 buttons on the left side which are the forward stop and the reverse button to remove the filament

Posted by a reviewer on Amazon

On the right side there are the 2 speed buttons and on the top on the 2 sides of the screens there are 2 more buttons that controls the filament type heat temperature onoff button

Posted by a reviewer on Amazon

This package is a good starter set to learn the basic usage of this pen and getting the hang of the awesome concept 😉👍🌟you get 2 filaments pla which is red and abs which is purple charger pen desk stand with a suction cup on the bottom though it isnt holding that well maybe only mine is that way though the pen wont fall if you place it on a flat surface

Posted by a reviewer on Amazon

Im not much of an artist so i cant say that it produced any amazing works for art for me but of course thats on me for my lack of talent not the pen

Posted by a reviewer on Amazon

However given that its tempting to wave the pen around in the air for some projects and to use it close to your fingers for others this isnt something id recommend for unsupervised childrens play

Posted by a reviewer on Amazon

The only minor gripe is if you want to change colors or plastic types within a project you have to eject a significant amount of the first material which cannot be reused and then restart your work the new stuff will not connect seamlessly to the old stuff even if its the same type of plastic

Posted by a reviewer on Amazon

Its possible that more experienced workers could do a better job i just played around on my own without reading any instructions

Posted by a reviewer on Amazon

If you go to the internet to watch videos youll see people swinging the pen around in the air