SUPER VALUE. Our Valentines Day Pre Filled Hearts with Spaceship Building Blocks includes valentine’s cards and 24 spaceship building blocks in random design. Each card has cute and humorous messages that perfectly match the pre-filled hearts and Spaceship Building Blocks. UNIQUE DESIGN. With our Prefilled Valentines Hearts and Cards, the kids can surprise their friends with a sweet message using the card and play along with building blocks to boost their social skills. Kids will enjoy playing with our Prefilled Hearts with Spaceship Building Blocks! Ideal Valentine gift for boys and girls. IDEAL GIFT. Our Prefilled Hearts Valentine Party Favors Set provides fun and entertainment for your kids! It’s a great gift option for kids’ school classroom prizes, gift exchange, love notes and more! Explore more kids Valentines cards . Item #: 12609