Here's a little more information about each of the items included in the Rupes BigFoot iBrid Nano Short Neck Starter Kit. You can click the link to visit the product page for a full description:
Rupes BigFoot iBrid Nano (Short Neck) - compact and powerful polisher for various tight areas
Rupes iBrid Nano AC-DC Adapter - turn your Rupes Big Foot iBrid Nano into a corded unit!
Rupes iBrid Nano Rotary Function Unit - utilize the Rupes Big Foot iBrid Nano as a rotary buffer!
Rupes iBrid Nano Backing Plate (1.25") - perfect replacement for your Rupes Big Foot iBrid Nano
Rupes iBrid Nano Wrench - allows you to easily attach and remove backing plates on your iBrid Nano!