Hand2Mind Centimeter Cubes, Math Linking Cubes, Plastic Cubes, Snap Blocks, Color Sorting, Connecting Cubes, Math Manipulatives, Counting Cubes For Kids Math, Math Cubes, Math Counters (Set Of 1000)Colorful, easy to manipulate cubes connect on all six sides and are perfect for investigating patterns, numbers, measurement, area, volume, graphing, and geometry. These plastic, 1 cm cubes come in 10 bright colors and all weigh 1 gram a piece. For over 50 years, hand2mind has encouraged hands on learning and discovery, driving deeper understanding and helping children unlock their full potential. Hand2mind specializes in math manipulatives designed