I really like the bulls quality. The USB cable that comes with it has an iphone style tip and a mini usb plug for kindles. I love putting junk like this in my car. I hope they last for awhile. I have tile surrounding the stove, these are perfect, adhesion is reliable. I had near tragedy happen when a glass-framed print suddenly fell off a smooth tile wall, crashing into the floor. My feet are fairly wide and very flat ?usually I wear a 9 in sneakers. If you have wide fat feet order up a size. He has a wide foot And they are roomy. I like that its not permanently mounted to the bike and can be removed when needed.