1.Ideal Dive Case for Insta360 X4: This Diving Case is compatible for Insta360 X4. Ideal diving case for your X4 action camera for diving, surfing, snorkeling and other water sports activities. Note: Only for the bare camera, if you install another lens protection cover, the camera will not be able to slide into the housing 2.50M/164FT Case: This waterproof housing case compatible for Insta360 X4, with upgraded waterproof sealing ring and tight buckle that help avoid water leakage effectively. You can use your X4 camera to record underwater activity deep to 50 meters/164ft without worrying about leaks, and it also won't damage the shooting effect, clear and vivid. Note: Because it is a clear waterproof case, you can put on the silicon lens cap (NOT Included) when you are not shooting to reduce scratch 3. Underwater X4 Housing: This housing case made of PC material, waterproof and durable, and easy to take and put. It designed for X4 underwater 360 video and photo capture, and well protect your X4 from scratches, bumps, dust and damages 4.Optical Spherical Lens Design: The unique optical spherical lens design can significantly mitigate for the camera in the water when filming, restoring a smooth stitching of the panoramic picture due to refraction of the imaging differences Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.