FingerTec DIY Metal Casing is specially designed based on a Do-it-Yourself concept to house FingerTec AdapTec TA/Plus and backup battery. The casing is made of Zinc Alloy, which is a robust material to hold and protect the inner accessories. It provides a pleasant looking facade when installed on wall, or can be concealed above the ceiling. The DIY design helps to reduce space and absorb impact during transportation.