As I saw in other review, I once forgot to turn off the noise cancellation during night and the battery was almost dead next day. I inadvertently bought 8 sets as I though each 1 was a 2 piece set ( ie the top hook and bottom plate equalled the 2 to hang 1 bike) but in fact you get 2 full complete kits and can hang 2 bikes which makes them much more affordable than I thought. Nice looking bit should have gone 1 size up. My heels kept slipping out and I had to stop constantly to readjust. Its not enough to make me want to return them. Durable hooks that will hold most lawn care and garden tools. Along with this, they?re very flexible and can fit neatly in a pocket without damaging them. Saw dropped frames and generally poor performance with this inline. Gran resistencia, se instala fácilmente y además de tener mucha capacidad para acomodar cosas Comfortable and cute looking shoe.