Right off the bat, I honestly feel like these guys deserve 5 stars just because they mention the size of the blocks in the product title. I've been collecting these magnetic block sets for a few months now, and only about half the vendors mention the block size at all, anywhere in the product info, and usually it's either buried in some fine print somewhere, or I have to click through all the product images and see if they have it diagrammed there. This is one of just a few who actually tell you the size up front. Since blocks of different sizes don't align properly because of the magnets, it's important to get all the same size. Huge kudos to these guys for making that easy.With that said, these blocks are super fun for my nieces and nephews, who love Minecraft, and also Mario Bros, which this set is definitely trying to emulate, at least a bit. The blocks themselves are very sturdy, with good magnets, and great quality, brightly colored printing on the graphics. The price is absolutely fantastic for the number of blocks you get, and they're just a blast to play with. My little nieces and nephews spend way too much time on their tablets and video games, so this gives them an opportunity to play with each other, in real life, while still being reminiscent of the games they enjoy. I think that's a healthy thing in so many ways. So pretty much, these blocks are just winning all around. Highly recommended!