10 different kid-friendly colors these cubes are terrific for grouping by color and for exploring patterns. Cubes link together on all sides of each cube with circular cutouts so kids can explore shapes and area. Manufacturered by Learning Resources. Cubes come in 10 kid-friendly appealing colors: red orange yellow light green dark green blue pink brown black and white. Homeschool supplies for ages 5+ TEACH children to count to 100 by ones and tens while building fine motor and email math skills.