I have a pull-up bar similar to the on in the picture at http://www.prosourcefit.com/products/multi-grip-pull-up-bar.
The hand grips are neoprene-ish foam. They break down very easily, and very quickly become tattered.
Would anyone know of an upscale version with solid rubber grips? I’m not looking for just any pullup bar. I like the multiple grips on the above pull-up bar, and the fact that some of the grips are offset from the plane of the door frame.