跟2套 flashcards 1. Brighter Child Early Learning http://www.amazon.com/Brighter-Child-734015-Early-Learning/dp/1609960238/ref=zg_bs_166243011_1 Price: $12.30 2. Brighter Child Math flash card http://www.amazon.com/Brighter-Child-734013-Flash-Cards/dp/1609960211/ref=pd_bxgy_21_img_y Price: $12.27 thanks a lot!