Approximately 0.5 ounces of 1:48 scale baked ceramic 'W' pavers in two shades of grey.
Unlike plaster bricks the color on these bricks runs throughout the material -- and is hard enough to build with or break apart for rubble without turning to powder.
Each brick is consistent in size and shape which saves you the time and hassle of having to reshape bricks for your project. They measure 5x3x1mm and each brick weights approximately 0.001 ounces -- giving you several hundred in each bag!