The Melissa & Doug jumbo cardboard blocks earned three straight hours of play on day one

The Melissa & Doug Deluxe Jumbo Cardboard Blocks got played with for three hours straight on day one in our house — that’s a lifetime in kid-years. They’re lightweight enough for a four-year-old to haul around, sturdy enough to build something worth knocking down, and cheap enough that you won’t cry when the dog inevitably sits on one.