The device helps to develop knowledge of numbers, counting, measuring and more. The plastic parts can be put together. Make it easy for students and teachers to understand or explain. There are 131 pieces in the set, consisting of

• Main unit size 1 x 1 x 1 centimeter, 100 pieces
• Ten main parts, size 10 x 1 x 1 centimeter, 20 pieces
• Hundred main parts, size 10 x 10 x 1 centimeter, 10 pieces
• Thousands of pieces, size 10 x 10 x 10 centimeters, 1 piece