Teachables Solid Square Counters - 2.5cm, 5 Colours, 1000 PiecesThese 1000 solid counters, available in five colours (yellow, red, green, blue, and white), are square shaped and measure 2. 5 x 2. 5 cm. With 200 counters of each colour, they are conveniently stored in a sturdy, reusable container with feet on the bottom to prevent slipping. Counters are essential in every mathematics classroom, providing a versatile tool to help students understand concepts such as counting, sorting, addition, subtraction,