Magna-Tiles have internal magnets that connect the shapes together. They can stack, make 3-d shapes and so much more. Similar to the previously blogged Kapla blocks, my kids have built buildings, aircraft carriers, ships, animal houses and more. They are so durable that we have not broken a single piece in the 6 years we've owned and played with them (including crumbling towers).
When you set out to purchase your Magna-Tiles, you should just jump right into the 100 piece set. It is much more cost effective and easier to build with and share than the 30 and 45 piece sets. Our original set was purchased online from Kaplan Toys (http://www.kaplanco.com/store/trans/productDetailForm.asp?CatID=3%7CMB1075%7C0&PID=47927) where we paid $110 and are still listed as such. Our second set was from Edufuntoys (http://www.edufuntoys.com/2300.html) for $99. I believe they are now $120.
These are great for preschool age on up. I now have a 9+ year old who still plays with them down to a 4 year old. They were great to have around when we had a baby because they aren't too small, are easy to handle and clean and also easy to clean up. The pictures shown are by the kids of their structures. We don't let them keep their creations up forever, so they take pictures and then destroy them. It's not just a normal clean-up, it's like Godzilla coming to town!
