Vintage Mattel Preschool Tuff Stuff Wonder Blocks 12 pcs Pooh, Tigger a guy

Mattel Tuff Stuff Wonder Blocks The blocks were produced by Mattel in the late 1970s, with some sets dating to 1979. They were part of the "Tuff Stuff" line of toys. The blocks are made of molded plastic and are known for their chunky, stackable design. The blocks came in various colors, including yellow, green, blue. This is a preowned set of 12 blocks please see pics.