Anti Fog Insert, contains 12 pcs OEM for GoPro, XIaomi, SJCam, Brica Action Camera, etc.
You get 12 pieces of anti fog with this purchase.
 
The attachments are also very easy, just slip this anti fog into the sidelines of your waterproof action camera casing.
 
Anti Fog insert absorbs moisture that may get trapped inside the case when sealed.
The fog problem arises when the ambient temperature differs from that of the encapsulated camera.
 
To minimize and even prevent any mist condensation that interferes with capturing those awesome moments, simply insert two or more strips around the Action Camera in the waterproof case and you're done!
 
To dry and reuse, just take it out and put it in the sun for about 30 minutes, and keep it in a dry box.