The Bead Bars for Ten Board with Box (C182) accompany the Ten Board to support children's concrete exploration of the decade numbers from 10 through 90, using ten-bars to represent each multiple of ten in a tangible, countable form. This material is a key part of the primary linear counting sequence and bridges children's understanding between the bead stair and more abstract numeral recognition. A dedicated boxed set keeps the ten-bars separate from other bead work and ready for individual or small-group presentation.