The product uses all-aluminum metal materials instead of plastic materials avoiding the aging and fragility of plastic materials and can be used as a long-term component of substitutes. The support rod is fully anodized and polished which can maintain the surface texture of the product and will not fade for a long time. The base is processed by CNC technology the edges are smooth and after sandblasting and anode treatment the metal texture of the product is perfectly embodied. The support module can slide up and down to adjust the position. Mesh rubber pads at the bottom it is convenient for users to install and stand firmly in the case without scratching the case.