Black with 68.5mm length is standard tension and red with 62.5mm length is high tension.
Guyker Noiseless Tremolo Springs (Set of 4) for FR Fender Strat ST Stratocaster Electric Guitar Bridge Instruments Accessories Replacement Part, Black
Guyker Noiseless Tremolo Springs (Set of 4) for FR Fender Strat ST Stratocaster Electric Guitar Bridge Instruments Accessories Replacement Part, Red
Noiseless Tremolo Springs for Floyd Rose 3 Red High Tension or 3 Black normal
Guyker Noiseless Tremolo Springs (Set of 4) for FR Black, Length 67.5mm
3 Pcs Noiseless Tremolo Springs Electric Guitar Treble Bridge Hook
Guyker Noiseless Tremolo Springs (Set of 4) for FR Fender Strat ST Stratocaster
