Produced of acrylicy Component, this Cracks Gauges monitor is wear resistant and not easily breakable This Cracks Gauges monitor can be used in various situation such as home improvement projects and interior decoration Suitable for enthusiasts and Professional, this precise Measuring Tool is perfect for measuring space and Cracks development The Cracks Gauges Set is a strong and Stable measurement tool for cracks Whether a professional or a homeowner, this Device is a must get tool for detecting wall deformations and cracks, Manufacturer: SHANGYAKEJI