Go Pro Anti Fog Insert Hero 2, 3 & 4

GoPro Anti Fog Inserts – for HERO4, HERO3+, HERO3, HD HERO2, Original HD HERO (AHDAF-301). Drop inserts into sides of camera housing to prevent fogging in cold and humid environments. To Reuse: Inserts will last for approximately 4 uses. To dry out and reuse, heat inserts on a pan in oven at 300° F for 5 minutes. Store in an airtight bag.
Compatibility HERO4, HERO3+, HERO3, HD HERO2, Original HD HERO