These are brilliant for all ages forget lego bricks these stick together using magnets and are perfect for the young going into construction or the average fiddley teenager! I even play with these myself, they are very addictive and calming. Take the magnetic marbles away from the younger kids, they can still connect together as the sticks have magnets in too. Great value for money I would def buy for the whole family, in fact i have 3 sets and the kids are still not bored with them and to be honest, neither am I!!