My children sat for hours playing with these blocks, they even figured out that they stick to the fridge! Tip: use a baking sheet to allow for continuous creative play! The blocks are definitely heirloom quality and will withstand many generations to come. A great investment at a slightly high price-point ($125 for 52 piece set). The way I look at it is that I rather spend a little more on Eco-friendly toys that are simply creative and fun, then a bunch of plastic toys that last a few days before boredom sets in.
The set includes cube shapes, large planks, small planks and jumbo planks. The set also comes in a very durable package that can be used for later storage. The company, based in Honduras' main focus is to help the crumbling economy. Through the sales of Tegu blocks, trees are getting planted and child education in Honduras as well as Holistic employment for its people. Great company, excellent product and hours of imaginative fun!