Product review (5 stars): So far so good. I ordered this product about a month ago
So far so good. I ordered this product about a month ago.  It arrived within a week and I located a video on YouTube detailing how to replace the old adjusters.  The replacement procedure took about 10 minutes.  The new design seems to include sturdier plastic and does not rely on the previous flimsy plastic tips to keep the wheels in place.  So far I'm very happy with this product.