After my wife gave a GoPro and now awaits the first diving holiday with the thing, were a few small parts needed. In this case fits a GoPro in UW-housing and two spare batteries. In addition, two pockets in the foam pre-dance, which are well designed for any mounting parts, which I will be equipped with the same ordered dual charger. At GoPro housing I have an adapter for a tripod mounted and this combination fits perfectly into the provided recess of the foam padding. The workmanship is perfect for my purposes, because the case is sufficiently stable and very well protected from splashing through the outside of the zipper encircling "sealing strip". The replacement batteries are supposed to stay as dry as possible. Whether proved this box and in practice, I'll know shortly.