Blue - Standard Waterproof Housing Aluminum Replacement Rear Snap Latch Buckle Lock for GOPRO HERO3+ HERO4 Blue Silver Editions Fits for Hero3+ and Hero4 side-open / waterproof housing Made of CNC 6061 aluminum Simple structure and lightweight Allows your Gopro Waterproof Housing rear door to shut tight Package Contents: 1 x Blue Standard Waterproof Housing Replacement Rear Snap Latch Buckle Lock