Bought this for £10ish quid wouldn't pay anymore than that but is a good kit to add some flexibility to your camera I use the helmet mount for camera mostly for longboard skating and it mounts on solidly. Some of the items need a bit more thinking about how you can adapt them for your use. The weatherproof silicone skin i wouldn't use in anything other than the dry weather maybe to stop stone chips/scratches on the metal body but doesn't work in any clip fixing . The armband works well if you can work out the filming angles. Overall all adds to usability for this camera!!