Product Details: [h=2]VOLTRIC Z-FORCE Ⅱ Description: The thinnest ever shaft and improved TRI-VOLTAGE SYSTEM increases the smash energy. Item Code: VTZF2 Flex: Extra Stiff Frame: H.M. Graphite, Sound Filter, NANOMETRIC, Tungsten Shaft: H.M. Graphite, EX-HMG, NANOMETRIC Weight / Grip Size: 4U (Ave.83g) G4,5, 3U (Ave.88g) G4,5 Stringing Advice: 4U 20-27 lbs, 3U 20-28 lbs Colour: Black/Black[/h] __________________________________________________ VOLTRIC Z-FORCE Ⅱ LCW Description: The thinnest ever shaft and improved TRI-VOLTAGE SYSTEM increases the smash energy. Item Code: VTZF2LCW Flex: Extra Stiff Frame: H.M. Graphite, Sound Filter, NANOMETRIC, Tungsten Shaft: H.M. Graphite, EX-HMG, NANOMETRIC Weight / Grip Size: 3U (Ave.88g) G4,5 Colour: Dark Pink _________________________________ [h=2]VOLTRIC Z-FORCE Ⅱ LD Description: The thinnest ever shaft and improved TRI-VOLTAGE SYSTEM increases the smash energy. Item Code: VTZF2LD Flex: Extra Stiff Frame: H.M. Graphite, Sound Filter, NANOMETRIC, Tungsten Shaft: H.M. Graphite, EX-HMG, NANOMETRIC Weight / Grip Size: 4U (Ave.83g) G4,5 3U (Ave.88g) G4,5 Stringing Advice: 4U 20-27 lbs, 3U 20-28 lbs Colour: Yellow[/h] Personally I feel these 3 rackets no difference in terms of spec, except color, any fans here can give your opinions. Thanks