1.Why choose us? We are a professional aluminum alloy factory having very strict requirements for every detail.At the same cost, we can make more exquisite products. 2.What is the biggest difference between this product and the products of other merchants? solid aluminum material, weighs up to 10.58oz with very pretty appearance. Specification: Size: 100*80*4mm / 3.9 * 3.1* 0.15 inch Weight:300g / 10.58 oz