I am thankful that this company provides Montessori materials at a reasonable price. I bought these for a Sequin board that I purchased earlier from the same company. The ten beads that came with the board are a lighter colour. I needed more ten beads for the tens board activity and purchased the additional set. But it is not the same colour as the original. The new set is also slightly longer. You would think that size and colour would be consistent if it's coming from the same company. The consistency in colour is necessary for the association needed for the Seguin board learning activity. I am disappointed.