Protect valuables while you dive: waterproof sealing housing prevents water from entering, keeping keys, phone, documents, and small electronics dry and secure during underwater activities. Attach and go: the sealing box can be linked to backpacks for hands transport and easy access on the surface or shore. Compact and portable: the dry box is easy to carry and store, fitting conveniently in gear bags, pockets, or clipped to your pack. Simple operation: the storage box is easy to open and close, providing quick access to contents without compromising the waterproof seal. Built for underwater use: designed as a diving storage solution to safeguard items when you dive into depths, offering reliable protection and peace of mind. Key attributes Function: waterproof dry box that seals to prevent water ingress and protect items during diving and water sports. Compatibility: designed to link to backpacks for secure attachment and convenient transport. Size and portability: compact design for easy carrying and storage. Material and performance: rugged waterproof housing engineered to keep contents dry and accessible; simple opening mechanism balances security and convenience. Practical use scenarios Scuba diving or snorkeling: keep your phone, ID, and cash dry on boat decks or at the shore while you enter and exit the water. Kayaking or paddleboarding: attach the box to your backpack or gear for quick access to essentials without risking water damage. Travel and outdoor days: use as a compact, waterproof storage solution for electronics and documents during beach trips, hiking to waterfalls, or marine excursions. Why customers choose this sealing dry box Reliable waterproof protection so you can focus on the activity, not on damaged gear. Easy attachment to backpacks for secure, hands transport. Compact, easytoopen design for convenient daily use and simple storage.