Review on Pen Filament Refills Book Including by Andrew Mclemore

I've been buying a PLA 3D pen from various companies for a little over a year, I already have a few primary colors in large spools, but I often need color accents or creative project features. I love the variety in this set and especially the glow in the dark threads. This set is perfect and gives me a lot of creative freedom. I have had nothing but good results with the product so far and look forward to using it in all my future work. And this is one of the best sets for a change for the price!