Could not be more pleased with the delivery speed, quality and fun these blocks represent. Had a small set of Bloks by a company in Houston, TX that no longer exists. Had given up on finding anything that would work with the old set. And then we found these. And they work. A little on the pricey side but I justified the cost because I believe they will get years of use. 3 year old and 19 month old love them. Really helpful with beginning building skills. A watchful eye is necessary since the blocks are so sturdy they have some sharp edges.