A set of quality, hollow blocks made from treated wood. Includes a variety of shapes to select and stack, including cuboids and planks. Build, design and create your amazing structures with these beautifully made blocks. Made from pressure treated timber, enabling endless outdoor fun. A great, robust resource for child-initiated and collaborative play. Block sizes vary from 10cm - 40cm in length. Age range; these items are suitable for children aged 3 years and up