Maybe because I wear a size 9. Very disappointed with that. Lat pulls, dead lifts, rows, pull-ups, etc. I have no idea what happened to mine; however, I did not drop it or knowingly do anything to damage it. Bought this January 2nd, came next day and it is now January 18th and it completely stopped working. This is a delightful, wonderful, engaging book, and everyone, horse crazy or not, should read it. Have not had any complaints at all. They are exactly as described, quick shipping, comes with a cute little bag. Dazu fallen mir wirklich keine Worte mehr ein. I considered bamboo racks at first, but past customers complained about poor quality, both in construction and material.