[Exclusively Fits iPhone 18 Pro Max]Precision‑engineered only for iPhone 18 Pro Max. A good match is critical to maintain the air‑tight IP68 waterproof seal and responsive button feedback. Please confirm your device model in Settings > General > About before ordering to avoid fit‑related issues [IP68‑Certified Waterproof Protection]Rigorously lab‑tested to meet IP68 waterproof standards, allowing submersion up to 6.6 ft / 2 m for 1 hour. The fully‑sealed structure blocks water, rain, splashes, sand and moisture. Great for snorkeling, swimming, beach trips, fishing and underwater photography. Always perform a waterproof test before water‑related activities [Military‑Grade Shock & Dust Defense]Dual‑layer frame exceeds military drop‑test standards, effectively absorbing impact from accidental drops and bumps. Sealed ports keep dust, dirt and sand out, preventing clogged charging ports and speakers. Ideal for construction work, hiking, camping and all harsh outdoor environments [Strong Magnetic Ring & 360° Full‑Coverage Protection]Built‑in powerful magnetic ring delivers stable alignment, compatible with Mag‑Safe chargers, car mounts and wireless accessories. Integrated screen protector and raised scratch‑proof camera bezel offer full‑round protection. Important: Remove your old tempered‑glass screen protector before installation to ensure flawless touch sensitivity and waterproof sealing [Easy Installation & Service Support]Simple split-shell snap-lock design enables fast, installation and removal easily. If you encounter fit defects, sealing failure or quality problems, our customer‑support team will provide quick solutions for you