(Gigabit Class 6 off-white)Transparent crystal head (Gigabit Class 6 pure black) Transparent crystal head(Gigabit Class 6 off-white) Silver-plated shield head(Gigabit Class 6 gray-black)Silver-plated shield head(Gigabit Class 6 gray-black) Silver-plated shield head (Gigabit Class 6 gray-black) Silver-plated shield head (Gigabit Class 6 gray-black) Silver-plated shield head (Gigabit Class 6 gray-black