PINRUI TPU 3D Printer Filament, Flexible Filament 1.75mm, 100% Virgin Raw Material, Dimensional Accuracy +/- 0.03 mm, 0.8kg Spool (Black)

I actually really love this filament. I'm printing on a mostly stock Ender 3. I do have an upgraded metal feeder which has a slight notch that reduces the area that filament can get tangled though. It has printed great at 220 with 30 mm per second on several projects from tiny to fairly large.

We tried for hours to get this to work in our ender 3 (we have 3 of them so we know what we are doing).We even printed the special extruder parts and none of the tips helped.You cannot print with this without a direct drive extruder in my opinion.They need to state that in the product description.

Great product worked great.. great result