I purchased these in different colors and was not disappointed at all.  I am glad that I did get all the colors I needed at one time. They are easy to insert in your sneakers because they are the right thickness, and I can see that they will last very long because the ends are reinforced with a see through silicone which allows you to see the same color to the very end, and which makes it easier to string them through with ease.  The material used to manufacture them is excellent.  I would recommended them highly and the Seller because his product is accurately described on the site.  Great product, fast shipping.