They were Too Narrow! I didnt believe the 1-star reviews and gave it a try and wasted my money. I dont have the worry that the bikes will fall off. Honestly it was mainly just because I was leaving on vacation in a couple of days and needed sandals, and my only other option was those the thin foam ones, which I cannot stand. Very happy with them and they actually do look cute, too. If you need to listen to things on the go, but also interact with others around you, then this is a perfect solution for a great price. What it does have is mid-bass, and quite a bit of it, especially on the low end of the mid-bass range. This is a fantastic idea and it has worked flawlessly for me! Other ones that have the similar finish (brushed nickel/stainless steel) are almost double the price. I am very disappointed with this product and you SHOULD NOT PURCHASE THIS ITEM, this item has a very thin layer of plastic around a super tiny microchip with a new usb plug in it.