1. For 11/10/9 Weather- Pass Through Door. when charging,Weather-,Quick to install 2. Weather- All the Day. The charging port is designed as weather- part and is wrapped with a silicone seal to effectively the device from bad weather. 3. When Charging,No Need to Open the Cover. A charging port is reserved for the device, which can be used with the rechargeable selfie stick to enable continuous without changing the battery. 4. Built-in Poron Foam for Protecting Battery. Resilient and shock- absorbing on the battery during intense exercise. 5. Stretch Clips for Quick Disassembly. Built-in spring, gently push the barb to disassembly instantly. Enjoy Outdoor Times. No weather can stop you from being free. Instructions: Install: 1. the old camera side cover. 2.Attach the weather- pass through door to the camera. : 1.Push down on the barb part. 2.Gently pull outwards to complete removal. Weight: 10.44g Compatible with models: For GOPRO11/10/9 color:Black Material:ABS+stainless steel+silicone size:. 49.5 x 17.8mm Package Contents: 2 x Battery Cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.