510 is the greatest series and it always be the first choice for guitarists to upgrade their guitars.
Gear Ratio: 1:21 I Set of 6: 3 left, 3 right
The Lubri-Plate™ process electro-coats the gears with a special polymer layer. This eliminates the need for oil and keeps the lubrication where it's needed, for the life of the tuner.
Rock-Solid™ string posts eliminate looseness, for improved tuning stability.
About Color Code
N (Nickel), C (Chrome), CW (Chrome White), GG (Gold), B (Black Chrome), CK (Cosmo Black), XN(X-Nickel), XC (X-Chrome), XG (X-Gold), XSV (X-Silver), SB (Solid Brass), SG (Semi Gold), HC (Honed Chrome), HG (Honed Gold), HCK (Honed Cosmo Black), MTG (Mat Gold).