Tungsten Cube
in my experience the best cubes are the 2.5in and 3in (11lbs and 19lbs) since you can still pick them up with one hand, the 4in is uncomfortably large and awkwardly heavy at 45lbs
in my experience the best cubes are the 2.5in and 3in (11lbs and 19lbs) since you can still pick them up with one hand, the 4in is uncomfortably large and awkwardly heavy at 45lbs