Features: l Strong and durable in the form of a lock l Three layers of sealed keys, watertight l Stylish and elegant appearance, show your personality l Made of high quality material, durable and wear-resistant Specification: l Size: 8.2x8x4.4cm l Shell Material: High Light Transmission And Corrosion Resistance PC Germany Bayer 2805 l Waterproof Depth: 30m l Lens Material: Organic Tempered Glass, AF AR Double-Layer Optical Coating l Button Material: Aluminum Alloy 6030 l Spring Material: 304 Stainless Steel l Waterproof Ring Material: Amorphous Highly Active Silica Gel l Main Body And Back Cover Connecting Shaft Material: High Hardness 304 Stainless Steel l Applicable Model: for insta360oneRS Package: l 1x Protective Case