Stacking Counting and Matching numbers: stack the rings to the right number and colour in matching these on the tiles. Also match the right number on the tiles to the corresponding dots count on the base. Or randomly stacking for fun or create beautiful patterns. It is one of the best stacking toys to learn numbers counting colour and number sorting and matching doing simple maths learning opposite of low and high (pegs) less and more etc. "0" marked at no peg on the based is good way to introduce the concept of zero. It is always advisable that an adult supervises and enjoys the interaction of children with this wooden educational toy for more learning. Manufacturered by Toys of Wood Oxford. This rainbow stacking toy is made of solid fine wood attractive rainbow colours and multifunctional educational toy. One of great educational toys for 3 years old and up. All the parts are bigger than the choking hazard standard so in fact it is safe for children under 3 years old. It is ideal as a maths teaching tool at home and in classrooms and also for Montessori learning. Safe and Environmentally Friendly: Toy safety and children's happiness are our top priorities. We make our wooden toys with pure love and care for our children and the environment. Our wooden toys are made of sustainable wood with environmentally friendly and non-toxic paints. It conforms to EN71 and CPSA Standard and is tested and certified by International Accredited Labs. We are committed to customers total satisfaction. Solid base with 9 pegs and 45 beautiful rainbow colours large size wooden rings and 10 detachable number blocks in square shapes. 43.3X11.6X11.5 CM.