PCBWAY PCB ruler - free with some coupons

This time PCB way included a pcb ruler in exchange for some accumulated coupons, which is very very helpful in visual perception of various smd devices, hole, and pad sizes. Its especially very useful for a PCB designer to mentally picture the actual size while designing the PCB. Thanks a lot.Because of nice system of coupon for repeat customers, I always come back to pcbway for all my PCB needs. This is how I was able to get this pcb ruler free of cost.