Usb Rapid Car

I just got a 16gb Prime Time Huge Ultimate Accessory Kit for the Canon T1i and i want to know who to use them?

http://www.amazon.com/gp/product/B003BW0N1U this is a link to amazon where i bought it and it includes the following
1- 16GB SD MEMORY CARD
1- USB SD/HC Memory Card Reader
2- 2 Rechargeable Lithium Ion [...]