Edushape 36 Piece Corrugated Blocks

we have these cardboard block. We have ahad them for about 8 years for three kids and countless playdates. They have survived being walked on, thrown, smashed, and basic building. They take up a lot of storage space becuase it is not easy to take them apart and put back together. My nine and seven year old still use them as roads and walls when playing with other toys.