This set includes colorful, durable, realistic looking tools that are made from 100% recycled plastic. The tool box features four holes on each side, sized to work with the included 2-hole connectors and fit the bolts and nails. Kids love all the Do-it-Yourself projects that are possible with this set. Even the pliers open and close! and best of all, the pieces all fit conveniently into the tool box for easy storage.