The weights for the UW housing were already due. I have more than 1,000 images with the camera as a "buoy" shot. I had to search many times for the camera, which cost time and air. Now I always know where the camera is and the "Salzloßwerden" after the dive the camera is always really UW in the boat. The weights were very easy to install and are very firmly in the case, you really need only the right to bring (solid as it should be), and they stay where sin belong. Cleaning is just as easily as they bring on. Properly read the instructions and everything works.