This is a replacement kit for the GoPiGo3. If you’ve purchased since July 2017, you probably have the GoPiGo3.
A good quick way to figure out if you have the GoPiGo3 is to look at the robot and if the top is a red board with a white “Dex” on top, it is the GoPiGo3. If your green Raspberry Pi board is on top, it is most likely a GoPiGo2, replacement acrylic can be found here. If you do not have a red velcro strap to hold on the battery pack, you have the GoPiGo1.
This replacement part kit includes:
(1) acrylic body for GoPiGo3
(1) hardware kit for GoPiGo3