Although the holder does not work at first glance absolutely stable, the quality is very high.
The holder is used daily and can keep up with, although it is after several months usage remains stable and keeps the card firmly very good. After the months though are easier wear and tear on the clip and on the rope, but the product is still fully usable. The card holder per se, has still no signs of wear and the slider holds bombproof, however, you can slide the card out without problems at any time.
The pulley continues smoothly without any problems.
I would recommend this product without restrictions and buy again at any time.