LEAPCOVER Environment Friendly Stylish Case Make by Wood + Alumiunm with Walnut For iPhone6/6s 4.7 Inch --&gt; 1.It's not only environment friendly but also can absorbed some radiation. --&gt; 2.This case is made by wood and aluminum, so the joint part will not be that flat. --&gt; 3.Entiredly machined by CNC technology. Metal parts are made of aviation aluminum, high strength and toughness. --&gt; 4.Take many factors into consideration, the button is also made of aluminum, you don't need to worry about the quality, it will be durable. --&gt; 5.The unique material make it prevent scratvh and shockproof in any angels. Natural wood, hand polished.