This kind of iPhone edge case is made from Aviation aluminium alloy and silicone, out layer is aluminium alloy and inner layer is silicon, so it offers a effective protection for your iPhone edge from direct collision.
The iPhone 7 bumper case could protect your iPhone edge, but can not hide your iPhone in a bulky case, this let you more individual and fashional
Slim profile at only 2.5mm thick, weighs 12 gramsHard and soft polycarbonate construction with a matte texture for enhanced grip.
The iPhone case has three silicone joint, you can twist it and easily install it onto your iPhone without any scratch to your iPhone