This is suitable for the construction industry. Its high accuracy measurement capabilities make it an essential tool for crack monitoring in various settings. The material used in its construction ensures durability and reliability, allowing for long-term use. With its small size and portability, it can be easily carried around and used whenever needed. Features -Color:multi -Material:Acrylic -Size:10.00X3.00X0.90cm/3.93X1.18X0.35in -Measuring range:0-10mm -Accurate measurement for crack monitoring in different settings: precise crack measurement in various environments. - acrylic material for long-term use: sturdy acrylic construction for extended durability. -Portability for on-the-go crack monitoring: convenient portability for monitoring cracks. -Suitable for professional use and diy projects: ideal for both professional and diy application. -Visual assessment of crack severity: visual assessment of crack severity using a ruler for cracks. Package list: 1 x pair of gaps crack rulers 4 x screws 1 x chart