All the grits you need and plenty of them. Now on height issues, I am 54" and put the bar on the lowest slide adjustment setting its too short for me, so yes us short ladies are in luck on this one! I tried different earbud but I had mic issues. Ive heard of people just putting shims inside the gap however I didnt fee it would stay on a long trip without screws. Would recommend highly! I also received a ring holder as a gift along with my purchase, which I thought was pretty cool. Since we got it, we have been quite pleased with it. it holds a huge amount of spices. Ive also used them without any music, just on and connected to block out noise. The other thing that recently started happening is the mouse wheel squeaks and scrapes, making really grating noises.