Bench Vice jaw pad - 4" swivel vise

Based on "Bench Vice jaw pad" by ChrisMagno. I redid the model in Wings3d to fit the jaws on my generic 4 inch swivel vise. Printed in PLA, 100% fill.
UPDATE 15-5-2016: I have slightly increased the edge dimensions and made the main face thicker, I have also removed the lip on the bottom edge as I found it to cause the pad to warp and split. I am considering further improvements as I use these pads on my vice and will post my findings here. Alternate model has a V slot for holding round rods.
Any feedback or suggestions welcome.