Easy to connect, interlocking cubes are perfect for teaching students fundamental math concepts—counting, sorting, patterns, addition, subtraction, multiplication, graphing, and more! Versatile tool for teaching multiple math concepts. Durable pieces will withstand repeat usage. 10 Bright colors (blue, yellow, red, green, orange, black, purple, brown, light green, and white).Details:Includes assorted colors1" x 1" x 1" piece size1.000 cubesFor ages 4 to 8