Upper and lower two layers, surrounded by sponge full package, shore fall prevention, floating in the water.SGS international agency IPX8 level 30 meters waterproof certificate, peace of mind free to play in the water. Four layers of PVC, double-sided touch screen slip film, 2 layers of suspension sponge, seamless fusion, waterproof force is stronger.ABS double-button sealing waterproof clip, internal anti-dislodgement, comprehensive protection of mobile phones. High-definition and high-transparency large window, transmittance rate up to 99%, record wonderful moments. Measuring 9.84*5.51 inches, this custom sponge floating mobile phone waterproof bag. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Eco-friendly material, reusable, foldable for storage.