The Wooden Toy Co Coloured Building Blocks 25 Piece Set Large is a great versatile toy for children. Open-ended and very beneficial for learning and development, wooden building blocks are a must for every play space. Our coloured wooden blocks are made using certified, sustainably grown Radiata Pine. They are coloured using non-toxic, water-fast stain. They have a grippy feel and texture, are light and easily stacked by little hands. All our block sets are sold with a custom tray, made from sustainable radiata pine. All of our toys are made in Melbourne, Australia. Dimensions: The blocks in this set are 42mm wide and range in height from 126mm to 210mm.