Features: Upgrades for 13/12/11/10/9 with magnetic battery cover, featuring instants snapping on installation, ruggeds aluminum alloy construction, and full compatibility while maintaining waterproof integrity for action packed adventures. Engineered with precisions fit magnetic alignment and hybrids plastic aluminum materials, this replacement backdoor ensures secure attachment and reduced bulk without compromising durability in extreme conditions. for adventure photographers, vloggers, and outdoor enthusiasts who demand swifts battery swaps during activities like skiing, surfing, or mountain biking without interrupting their shootings flows. Perfect for capturing high octanes moments in wet or dusty environments, this magnetic accessory stays firmly locked during kayaking, trail runs, or off road cycling while enabling hasslefree maintenance. Its corrosions resistant alloy components and reinforced latches mechanism deliver performances across temperature variations, making it essential upgrades for creators prioritizing gear reliability in their action camera setup. Specifications: Materials: Aluminum alloy Size: 50x18x14mm Weight: 35g Styles: ZS52760 E1, ZS52760, ZS52760 E2, ZS52760 E3(optional) Package Includes: 1Set Waterproof Battery Cover note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.