1.5-Inch Tungsten Cube (1kg)

Choose by the physical experience you want. The smaller cubes make tungsten’s density surprising because so much weight is concentrated into so little space; the larger cubes turn that same property into a much more substantial object. Compare the dimensions and minimum weights carefully before ordering, particularly from 2 inches upwards.

The cube is solid high-density tungsten alloy rather than a hollow or tungsten-coated object. Project Atomic cubes use a tungsten alloy that is 95% to 97% tungsten, depending on material availability. The small amount of nickel with iron or copper allows the material to be manufactured into a precise finished cube.

Tungsten content can vary between 95% and 97% depending on material availability, which changes density slightly. Manufacturing tolerances can also produce small variations between individual cubes. Where a product is sold with a minimum weight, that minimum is the figure to use when comparing it with another size.

Handle it with clean, dry hands and wipe the surface with a soft cloth when needed. The more important consideration is its mass: larger tungsten cubes can damage desks, shelves, floors or other objects if dropped. Use the supplied packaging or stand where appropriate and take particular care when moving the heavier sizes.

The Imperfect option is the same 2-inch tungsten cube with minor surface imperfections. It has the same material, dimensions and minimum weight; the difference is cosmetic. It is an option for someone who wants the physical experience of the cube and is less concerned about an immaculate display finish.

Because its mass is a round one kilogram, you can compare it directly with one-kilogram cubes made from less dense elements. The mass stays the same while the physical size changes. At 38.1mm per side, tungsten shows just how little volume is needed to reach that kilogram.

At a minimum of 1kg, it is substantial but remains compact enough for straightforward handling. The 38.1mm sides give you enough surface to grip while keeping the object remarkably small for its mass. It sits between the desk-friendly smaller cubes and the much heavier two-inch-and-up sizes.