Let the brain games begin! Kids build critical thinking, problem solving, and other essential STEM skills as they turn MathLink Cubes into versatile pieces in games inspired by checkers, Tetris, and more. Designed for solo or headto-head play. Includes building frame, 15 double-sided activity cards, and 100 MathLink Cubes in 10 bright colors. Tray measures 8.5” x 8.5”.