Review on SUNLU 3D Printer Filament, Neatly Wound PLA Meta Filament 1.75Mm, Toughness, Highly Fluid, Fast Printing For 3D Printer, Dimensional Accuracy +/- 0.02 Mm (2.2Lbs), 330 Meters, 1 KG Spool, Black by Chad Myers

Buy the silk for the best color change. This non silk standard pla rainbow sucks if you want to see color changes.Too slow of a transition, nowhere as nice as the change seen on the silk rolls. Wishing it had same rate of color change as the silk, will stick to itThis roll just doesn't change colors fast enough and I got lots of single color prints with barely any variation except seemingly all at once within a few layers even on large and small pieces