10 massive rods with an edge length of 2.5 cm and increasing length of 10 cm to 1 m. Due to the alternating division into red and blue sections, the amounts 1 to 10 are represented. When arranging the rods, the child is sounding out the numbers and this way, is learning to count. The little number boards are an ideal addition to the numeric rods. This way, each rod (= concrete amount) can be assigned a little number board (= abstract symbol).