It makes me sad to return them, because the length of the sandal is perfect. This could not plug into my son?s Beats headphones. I loved them so much, I bought my own and now I wear them everyday! I keep them stored in a drawer with other batteries that I also tested and they are all holding correct voltage. I loved the smaller size available for our RV and when my husband was putting it together he commented on the impressive quality, which is unusual for him! I would like to buy it in wide for my husband. They are soft and very light weight! I would love to be able to give this product 4 or 5 stars, but based on my personal experience with this product, I can only give it 3 stars overall. This put my front wheel several inches off the ground, with the wheel swinging widely to the side. I was able to start on the second set of hooks with no discomfort.