This Ducame 37mm Filter Adapter + UV Filter + Filter Cap for Gopro Hero3, Hero 3+ is a package of 3 items which provides your Hero 3 and Hero 3+ with lens protection and reducing the reflection.
The UV filter helps protect your valuable investment from dust, moisture and scratches, which can lead to costly repairs. It eliminates ultraviolet rays.
Reviews Ducame HPRO 37mm Filter Adapter + UV Filter + Filter Cap for GoPro HERO3, HERO 3+