The leaf pads makes it great for quickly prototyping stackable circuits. You can not only solder DIP components but also solder SMD components.
You can solder the digital & analog IO pins and plug it into Arduino,so that the protoboard can directly communicate with Arduino like a simple shield. See the following picture,a simple light water project with Arduino.
ProtoBoard Pro -Double Sided (1 unit).
Compatibility: DIP & SMD components.