This shield is a double sided Arduino compatible unit, based on a very popular design by Majenko Technologies. The prototyping area comprises of paired holes, which is an extremely useful feature as many prototyping boards just have single holes.  A board with single holes can make connecting wires to components a real pain. However, with paired holes, you now have somewhere to solder the component and solder a connection wire. The paired links are exposed which means you can easily break them if required. In addition, the board has a collection of surface mount pads on each side with break out areas making this a very comprehensive shield indeed. 

This board includes standard header pins but does not include stackable headers.  If you want your prototyping board to be stackable, you will need to purchase our stackable header kit.