This is a protoboard that stacks on to the Arduino UNO - It brings all the data, I/O 5V and Ground pins to the shield and provides a nice surface for soldering your components. Stacking headers are included so you can stack additional shields onto this one.
In addition to the protoboard surface, this shield also comes complete with 2 general purpose push button switches and 2 general purpose red LEDs. It also has a solder pads for a 14-Pin SOIC SMD IC.
Vetco also includes an mini solderless breadboard with double sided mounting tape. It can mount directly onto the protoboard area - You can turn your Arduino into a true prototyping platform.
This item is just the Arduino Uno Prototype Shield with a Breadboard. No additional shields, power supplies, cables, software or other accessories are included. Vetco sells an ever increasing selection of Arduino shields and Arduino sensors.
This prototyping shield should be considered an essential accessory for anyone who has an Arduino.