The Linex Active Learning Range is a group of robust products specifically designed to help students understand mathematics through creative learning and play. From Pre-Schoolers through to Primary School, at home or in the class-room, the products actively engage children to learn basic math such as Counting and Time through to more complicated problem solving with Geometry and Fractions.Wissner Base Ten Set is made out of RE-Wood. Comes in a cardboard box. Recommended for 4 years and above age children.