The wood screw is a great tool for developing fine motor skills. The smooth texture of solid rubber wood is also a good way to get to know construction tools and how they work. This version of the classic toy comes in the harmonious form of a cubic unit with all the components in place. 18M+ Wooden Toy Full Name - Montessori - Screwdriver Toy - Screwing and Unscrewing - 36M+ Wooden Toy