I was hesitant to purchase these because some reviews said they were basically paper and fell apart easily. This was not the case with the magnets I received. They are really hard embossed wood/cardboard type material. My toddler has used these for a month, chewing on them, scattering them around the house, and they are still going strong. I'm really happy with these magnets and i will probably purchase the matching number too. Oh, and the colors are super cute!