Fagus toys are produced in a factory where meaningful work is provided for people with intellectual disabilities. The toys, made without nails, screws and staples, are interlocked, doweled and glued together. This four piece wooden marble set can be used in addition to the wooden marbles that come with any of the Fagus Marble runs. Materials: Beech Wood Not suitable for children under 1 year old. Recommended from age 2. 45mm diameter.