1.For 11/10/9 Weather-resistant Pass Through Door.when charging,Weather-resistant,Quick to install2.Weather-resistant All the Day.The charging port is designed as weather-resistant part and is wrapped with a silicone seal to effectively protect 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 exercise.5.Clips for Quick Disassembly.Built-in spring, gently the barb to disassembly instantly.6.Enjoy Outdoor .No weather can stop you from being free.Instructions:Install:1.Remove the camera side cover.2.Attach the weather-resistant pass through door to the camera.Remove:1.down on the barb part.2.Gently pull outwards to complete removal.Weight: 5.22gCompatible with models: For GOPRO11/10/9color:BlackMaterial:ABS+stainless steel+siliconesize:. 49.5 x 17.8mmPackage Contents:1 x Battery CoverOnly the above package content, other products are not included.Note:Light reflection and different displays may cause the color of the item in the a little different from the real thing.The measurement allowed error is +/- 1-3cm.