Slide Rule To Go "Educate" Small Slide Rule (Abacus) - 5 Rows - Ideal for travel / schoolbag. Made from Robust FSC 100% Certified wood. Features 10 bright colorful beads per row and a high-quality wooden structure. Develops fine motor skills and arithmetic skills. Approximate Dimensions: 13x5x15cm. Recommended Age: 4 years and up. Small Foot is part of the Legler Brand, known for quality wooden toys crafted with care and made to the highest standards. Meets or exceeds all European Safety Standards. Abacuses have been used to teach the basics of arithmetic for ages. This one is made of robust FSC 100%-certified wood and lets young mathematicians practice counting and basic arithmetic operations. A great little abacus for the first counting exercises for early ages prior to school time. 5 rows of 10 beads each in bright colors for easier discernment. A handy opportunity to teach small beginners how to handle an abacus.