Toys of Wood Oxford Wooden Shape Sorting Clock / Wooden Clock with Numbers and Shapes Sorting Blocks Suitable for Montessori Learning Finest wooden teaching clock features 12 different shape wooden blocks representing 1-12 hours which fit into matching slots on the clock, numbers of dots at bottom side correspond with the numbers on the top of the blocks. The hour and minute hands are labelled very clearly, and the hours (1-12) are marked both on the shape sorter blocks and on the face of the clock. The five minute intervals are also clearly marked, showing how an hour is made up. Suitable for age 3 years plus. First learn shapes, colours, numbers and counting then gradually to learn to tell the time. Colourful, sturdy and durable: all the blocks are bigger than choking hazard testing tube and easy to grasp. Clock dimensions: 22.8cms (diameter).