THESE WILL PROVIDE HOURS OF BUILDING FUN. THESE BUILDING BRICKS DATE FROM SOMETIME AROUND 1960. THEY ARE MADE OF PLASTIC AND ARE ABOUT 3/4" LONG. THEY COME WITH ACCESSORIES SUCH AS DOORS AND WINDOWS THAT CAN BE BUILT IN. THERE ARE 400 PLUS PIECES. FOR OTHER VINTAGE TOYS, ANTIQUES AND COLLECTABLES PLEASE VISIT MY OTHER ADS.