1007635mm[3.92.991.37inch] DIY Black Aluminum Electronic Box Project Enclousure Case for Digital Amplifier and Portable Headphone Amplifier M Size / Black [Wx-1007635-bk] Go to amazon.com Related posts 10 best aluminium box amplifier diy FeatureColor/BlackScrew includedExternal Size:100*76*35mm[3.9*2.99*1.37inch]Top quality and made by environment-friendly material DescriptionColor/Black :Screw included External Size:100*76*35mm[3.9*2.99*1.37inch] Top quality and made by environment-friendly material