I have always hated sit-ups but once I learned how to do them with this mat, I don't mind them at all. Eliminates rug burn when on carpet, and supports the back. Has 9 exercises on the back as well to help you get different workouts.

Fast delivery, met all expectations

Perfect fit with my F150 FX 2014 model.

Read instructions, watch video on You-Tube, ponder a few minutes and then install in 2 minutes or less. Fits J3 2017 perfectly. Installed on two phones without a problem. Phone works well with protector. Someday I may find out if it is a problem to remove and replace. For now, all good. Oh, arrived sooner than expected.

These are great for dark areas....closets, cupboards. No more dozens of batteries for old style lights. Auto on/off works great. Long lasting charge. Screw in or stick on. I always screw in as is more secure.