Size: 19.5" tall by 10.75" wide, Weight: 2.25 lbs. Strings are steel, with a ball end. String spacing is in general 0.5" apart at the bridges*, grouped like a piano keyboard, bi-level, tapering out towards the top to 0.75". Since the grouping does follow the piano layout, there are slightly larger spacing to delineate four groups. Since the strings are arranged in two levels, aggregate spacing is approximately 0.25". It appears that the instrument needs to be played with both hands, one hand per bridge group, on each side of the lyre.