your child started on the right track! Each deck comes with a binder ring, ensuring that cards don't get lost. 36-double sided cards in each deck. Learn basic skills, language, and math in both English and Spanish. Ideal for reviewing and practicing. On-the-go learning for ages 3 and up. Set of 4 flash card packs. Flash Cards measure 3.125 wide x 4.625 high (7.94 cm wide x 11.75 cm high). Flash Card Set Box measures 6.04 wide x 6.75 high x 1.89 deep (15.35 cm wide x 17.15 cm high x 4.80 cm deep).