Hot Wheels Valentines Day Cards - Box of 32 Cards Hot Wheels Valentines Day Cards for Kids Toddlers -- 32 Hot Wheels Valentine Cards (School Classroom Boxed Pack). This boxed Hot Wheels Valentine card set features 8 designs with favorite Hot Wheels characters. These Valentine cards for girls and boys alike are the perfect handout for Valentines Day parties. 32 Valentines -- enough for most preschool or elementary school classroom. Hot Wheels Valentines Day cards for kids and toddlers measure 4.5" x 2.5". Officially licensed Hot Wheels Valentines Day cards.