Unpopular Mystery Spool - PLA 1.75mm TPU-60D Cardboard core included

Cardboard core included

Addresses 3D Printing Waste – 3D printing generates a significant amount of scrap material

Special thanks to Joe's Computer Museum for designing and funding this color

a proper megohmmeter (insulation tester) should be used

Most TPU filaments on the market are rated 95A–98A on the Shore A hardness scale

Unpopular Mystery Spool - PLA 1.75mm TPU-60D Cardboard core includedMystery, or transition spools are a result of changing color during production, which produces a few spools of colors that are partially between each color. These spools still meet our tolerance and weight requirements. The "Unpopular Mystery" spools are the ugly colors that don't get chosen very often. Most are shades of white, beige, cream, and yellow. The color of these spools varies from batch to batch. Some spools have dramatic color changes