Play Together is a set of age-crossing interactive toys especially suitable for the physical and mental games of elderly and children. Every unit??s piece is designed with hexagonal cells with the maximal assembling possibilities available. The numbers of unit pieces can be increased or decreased freely with divergent play modes available. The units are designed with 3 different colors, yellow, green and blue, purposed to improve the color recognition capabilities and the focusing capabilities of eyes for both elderly and children. The units are made of soft EVA material with anti-slip textures on its reverse. It is featured with excellent safety to reduce the injuries caused by stumbling. In the game, grand parents and children work together to assemble various kinds of creative cards by using hammers and balls to conduct game-playing activities. Through gaming interaction, the complementary cooperation between grand parents and children is well exerted to enhance bilateral involvement and family fellowship.