Montessori activity wooden toy made from maple, cherry, walnut and mahogony. This, Waldorf toy set can be use it for practicing fine motor skills as well as hand and eye coordination. Practice screwing and unscrewing the wood nuts from the bolts and removing/replacing washers. Includes 4 removed bolts, two fixed bolts, two wooden nuts and 4 washers. This toy is finished with food grade fractionated coconut oil only. Perfect for build fine motor skills.