So Pretty! The row counter is comprised of four parts, the back, (which has two pin back posts so you can attach it to whatever your heart desires), the two numbered wheels, and the front facing. The numbered wheels are secured in place so they won't spin or lose count. It is truly the most functional pin! No more fumbling for your row counter, digging around for it at the bottom of your project bag, or worse yet, forgetting it at home!