The iPhone 17 Pro Max magnetic case has built-in 38 super N52 magnets. Its magnetic attraction reaches 2400 gf. The Nano antioxidant layer effectively resists stains and sweat. 10FT Military Grade Protection: Passed Military Drop Tested up to 10 FT. This iPhone 17 Pro Max clear case backplane is made with rigid polycarbonate and flexible shockproof TPU bumpers around the edge and features 4 built-in corner Airbags to absorb impact.