what do you think of this thing /fit/?is it healthy to use?it helps you to stay fit, grow muscle or anything?
party piece.
cool thing but really overrated
good for wrist/fingers/forearmmy rock climber friends use them and you can put up quite a bit of resistance if you use it right.
I tried one of those fucking things at that gimmicky-shit store who's name I can't remember. I don't know if they require batteries to function, but I couldn't even get it started up =(
captain of crush grippers, wrist roller, thick bars mother fucker