One suggestion: in your marketing clearly differentiate between the Junior filament and that for the other pens. We had to go through a return process after ordering the non-Junior filament only to find it to large for the Jr.
MYNT3D Junior 3D Pen Filament (Low Temperature PCL)
Great fun!!! Perfect colors!
Great for our grandkids!!
Grand kids love the 3D Pen and the filament.
Very fun to use and easy for my daughter. I wish they had more options to buy specific colors separately and in bulk instead of a batch of other colors we don't use. But, very fun.