SimFit is a versatile linking cube system to cover a wide range of maths concepts. They can be used for simple counting and sorting, but also for addition, subtraction and multiplication skills. Besides that, they are helpful to visualise fractions. When using them in combination with a grid, they can be used for hundred grid calculations, o show the value of digit in a number and use them for place value. The possibilities are endless. SimFit is available in a variety of pack sizes.