The idea of these is good but they are NOT adjustable fit. There is no way to shorten or length them. Its one length, and yes stretchy somthey can get the shoe on and off but still just one length. If its too long (which it was WAY too long for kids shoes) you have to get creative with how you lace them. I figured it out, fine. But then I noticed that the package said 10 units. I only got 8 units.

8 units, too long, NOT adjustable. I had to use them because I needed them for sports practice the day they came in. So I cant send them back now. I do not recommend.