ITEM NAME:20cm Multifunctional PCB Ruler Measuring Tool Resistor Capacitor ChWGJ Gw.1 x 20cm Multifunctional PCB Ruler. This versatile PCB ruler, also integrates relevant information for PCB design such as angle gauges, devices, IC pin spacing tables, and more. R-4 gold-plated PCB, high-end atmosphere, high hardness, wear resistance.