7 Sliced Layers Black&Transparent Acrylic Case Cover for Beaglebone Black compatible with beaglebone black Sliced 9 Layers Case Box is Brand New and high quality, it is made of 9 individual layers and held together with 4 nylon bolts, so it requires no tools for easy assembly and disassembly. easy to install,beaglebone black is not included Material:high quality acrylic