Description: Professional Design: Specially designed compatible for Hero9 Max action camera. Fits perfectly and seals tightly. Professional grade dustproof, drop-proof, compression-resistant. The HD lens with high transmittance help you to make a clear filming under water. Made of high-quality acrylic materials, make it sturdy enough to protect your camera lens and display screen against high impact drops, dents and scratches. Waterproof: With upgraded waterproof sealing loop and tight buckle that help avoid water leakage effectively. You can use your action cameras to record underwater activity deep to 40 meters/131ft. Occasion: Provides ultimate protection for your camera during extreme outdoor activities, deep-water diving, surfing, snorkeling and other water sports activities. Specification: Material: Acrylic Size: 9.3x5.9x8.8cm/ 3.7x2.3x3.5 inches Package Size: 10x10x7.2cm/ 3.94x3.94x2.8 inches Weight: 120g Maximum waterproof depth: 40 meters Package Includes: 1 x Waterproof Dive Case 1 x Quick Release Buckle 1 x Long Screw Note: 1. Please allow 1-3mm error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!