These are replacement pads for Irwin Quick Grip clamps. Printed in TPU flexible filament, these will not mar the surface of what you're clamping (just like the originals).
I used Sainsmart TPU but any flexible filament will work. In order to get a smooth face surface, I set perimeters to 4 in PrusaSlicer. If I used infill, there were little bumps on the face. Probably not a problem, but for the few extra minutes of print time and feet of filament it was worth it.
Print this with the “end” down and you don't need any supports,
The author marked this model as their own original creation.