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I went for this product as it had many pieces but was not happy to discover they do not all dismantle to use as you like. They have set cubicles which is not easy/quick to read /pick ( would had been great if they had black or white marks to differentiate them). They are also quite small on size. Nice to have them all in a bucket though. If I had to choose a product again I would go for a different one.
These are great They can be connected for addition and are split into squares to show their amount. I use them when working with pupils with special needs and they are a great concrete tool for addition, subtraction and recognising quantities and comparing them.
My five year old boy loves 'playing' with these rods. I bought a range of maths equipment to use with him at home and these were by far the most popular. (They were so popular that I had to buy some more when the dog ate one of the single white blocks leaving him with only 49!)