there is just a shell which fits iphone, pictured in the extension of the hull can be seen coming a flap to protect the screen, this flap does not exist.
The quality of the battery looks very average: the holding of the load is limited in time (after 48 this seems dramatically decrease) in addition, the holding load sometimes seems random.
Upon arrival, a product which on paper may seem to be "a weapon" adapted to cope with the weak autonomy of the iphone, it presents the same difficulties with battery ....
For me, the iPhone alone gives me autonomy (managing the use sparingly) 24h, 24h I can add with this product then some.
Finally, the maintenance charge iphone after having made "full" with SKPAD, is lower than on the industry ....