PicassoTiles 4 Piece 6" x 6" Yellow Square Magnetic Tiles

Picked these up to add on to our existing set and the 6x6 size is perfect for making bigger bases and windows. They snap together just as firmly as the smaller squares we already had.

My kids already had a bin of smaller tiles but kept running out of the big squares for making walls and roofs, so these four extra pieces fixed that fast. The magnets snap together firmly enough that a two-story tower doesn't collapse when my toddler bumps the table.

These 6x6 squares are the perfect size for adding height to our castle towers, and the magnets hold strong even with multiple layers stacked.