• Action cameras will heat up when in use, especially when shooting underwater, because the water temperature is low, and the inside of the lens will be fogged. You can wipe the lens with the anti-fog sheet or a lens cloth
• Install these anti-fog sheets on the side for GoPro camera case to prevent the camera from fogging up in cold and humid environments
• These anti-fog sheets can be used up to 4 times. To dry and reuse, simply place in a 300°F oven on a baking sheet for 5 minutes
• Anti-fog and moisture-proof insert sheets for action cameras, suitable for diving, mountaineering, surfing and aerial photography
• Compatible for GoPro Hero 5/4/3/3+/2, for Sony AS15/30, for AEE series, for Rollei series, for Xiaomi Xiaoyi camera, etc.

Specification: 

• Material: Sponge
• Size: about 2.5*1.0cm
• Weight: 8g