Fotodiox Pro GoTough 3x Replacement Lens Cap for the HERO 3+ Hero 4 Slim Skeleton Housing - Set of 3 GoTough Protective Lens Covers for the HERO3+ Hero4 Slimline Case (Will NOT fit the HERO3 Standard Skeleton Housing) 3x Protective Lens Covers for the HERO3+ & HERO4 Slim Housing Protects lens from dust, impact and scratches 24 Month Manufacturer Warranty