I think thats what they are called 
Those funky frame things that make it easier to do crunches? I used one in weight training when I was in highschool 5 years ago and would like to get one.
Inexpensive is good, but I don't want it to fall apart.

Those funky frame things that make it easier to do crunches? I used one in weight training when I was in highschool 5 years ago and would like to get one.
Inexpensive is good, but I don't want it to fall apart.