Product Details ：1. Suitable For Insta360x4 Fully Diving Shell 360-degree Fully New Fully Eliminated Waterproof Shell Protective Case 2. Shell Material: Hardened Pc, With No. 10 Fine Lines On The Inside And Outside, Making The Product Scratch-, Textured, Scratch-proof And Fingerprint-proof 3. Lens Material: Pmma, Transmittance Is , Transmittance Can Reach After Coating With Ar Anti-reflection Coating, As Waterproof And Anti-fingerprint Film, As Plus Hard Film, Hardness Is 5h, Comparable To The Hardness Of Ordinary Glass. Anti-scratch, Worry-free Photography With One Lens In Hand 4. Waterproof Ring Material: Amorphous Highly Active Silica Gel 5. Material Of The Connecting Shaft Between The Main Body And The Back Cover: High Hardness 304 Stainless Steel Description: 1. Waterproof: 50m 2. Applicable Models: For X4 Note:the Transparent Shell Only, Does Not Contain The Camera. Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:transparent Materi