These are amazing if you are looking for something a bit different from the norm but at a resonable price. I looked long and hard for something for my sons 4th birthday. He is not that interested in bricks but likes magnet construction toys and popoids. These were right up his street. He's only had them a short time but loves playing with them. They come with several instructions on different things to make which is helpful, very sturdy also . I have no qualms with my younger 19month playing with them. Delighted with my purchase and would highly recommend.