Made from sustainably-sourced birch plywood, the three lightweight wooden frames in this set are easy to manipulate as children explore threading the holes with a variety of lacing materials. Use wool, laces, string or ribbons to create colourful compositions. Such enjoyable activities are excellent for helping children to develop hand-eye coordination, dexterity and concentration skills. FSC approved. External frame diameters: 210mm, 140mm and 70mm.