PEPK Ultimate Series Aluminum Metal Military Heavy Duty Protective Case for Samsung Galaxy S4/SIIII/i9500 (Silvery/Black/Red, For Samsung Galaxy S4/SIIII/i9500) Original Manufacturer! 100% Genuine! Tested before shipping. Made of Aluminum Alloy(Boarder)+Silicone+Tempered Glass Screen Protector, full protect your Galaxy S4. It is definitely made of aluminum. It is very sturdy and will certainly absorb shock. It assembled easily and quickly. Everything is fully functional. It feels solid, almost like a brick. Not like other cases that you still cringe if you drop your phone. It claims to be waterproof. If your wanting a case to swim with. This isnt it. If you want a case that if you drop your phone into a bucket of water and QUICKLY remove it and be ok.