Based on the product features you offer, here are a few key selling points of this waterproof case:1. **60m Deep Waterproof**: The waterproof case designed for ACTION4 can withstand underwater pressure up to 60 meters, making it suitable for a variety of water sports and diving activities, so you can enjoy the adventure without worry.2. **High-definition and high-transparency material**: The glass material with high light transmittance is used to achieve a light transmittance of more than 95% to ensure that the shooting quality is clear and undistorted, and vivid pictures can be captured both on land and in water.3. **Dur Materials & Construction**: - The lens part is made of scratch-resistant and wear-resistant tempered glass, which protects the lens and ensures the image quality. - The whole is made of 316 stainless steel, which has excellent anti-oxidation and anti-corrosion properties, and it is still as good as new for long-term use. - The back cover has a built-in shock-absorbing and anti-compression sponge to effectively prevent the screen from being damaged by accidental impacts.4. **Multi-function expansion interface**: The waterproof case is equipped with two cold shoe interfaces, which can be installed with fill lights, microphones and other accessories, which greatly expands the functionality and application scenarios of the device.5. **Safe and Reliable Seal Design**: - The sealing rubber ring ensures the tightness of the waterproof shell and effectively prevents moisture intrusion even in high-pressure environments. - The three-fold snap design and safety lock mechanism ensure that the waterproof case is firmly closed and will not be opened by accident, increasing the safety of use.**Product Specifications**:Model: for Action4 waterproof caseMaterial: glass + high transparency PC + 316 stainless steelColor: TransparentWeight: 90 gramsFunction: 60-meter water resistanceSize: 90mm*90mm*40mm