1. Real machine mold design, gopro11 mini battery protection side cover can be directly replaced; 2. The silicone dust-proof and waterproof plug effectively prevents dust and rain splash; 3. Made of aviation-grade aluminum CNC machined, lightweight hollow design, sturdy and durable, the overall weight of the accessories is only 2.7g; 4. The aluminum alloy opening design eliminates the need to open the entire battery cover. It can be charged by opening the silicone plug. Charging while riding, the TF card will not get dusty, and the battery life will be maximized. 5. Aluminum alloy surface technology: anodizing treatment Product function/purpose: A. Suitable for replacement of gopro11 mini battery protection side cover; B. The aluminum alloy opening design can directly charge the camera and mit data; C. Silicone dustproof and waterproof plug, effectively prevent dust and rain splash; Colour:black Material:Aluminum alloy + silicone Size:about 28 x 18 x 8MM Package Contents: 1 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.