Looking at these at first they reminded me of something we played with at school when I was younger, but I wish ours were as cool as this and with magnets.
We opened them on Christmas morning and as soon as the handy carry case was open I didn't exist. All my children were captivated my them, making models and having competitions to see who's was the best. They loved every second and still do. My children are 1, 5 and 7, and being able to keep them all happy was amazing!