1. Material: Aluminum Alloy & Wood. Adopt the top-level aircraft grade aluminum as manufacture material 2. Uttermost reduce the effect to the signal to provide protection from scratches 3. Aviation aluminum metal case ,shock-proof scratch resistant, fashion, cool special frame case cover 4.Precise hole for all ports 5.Easy install and remove. 6.A classic combination of metal, modern and vintage 7.Every product is unique.Your own wood, each with a different grain 8.Hand workers to build, full of artistic atmosphere