Iouaer Guitar Bridge Intonation Tool Guitar Double Shake Bridge Adjustment Tool Tremolo Spring for Tremolo Bridge

1. FINALLY A TOOL THAT WORKS - machined from Zinc alloy 3. NO MORE HOURS OF DETUNING - make intonation adjustments under string tension 4. INCLUDES M2.5 HEX KEY - you 't have to find your "other" hex key to loosen the saddle screws, we include one with every tool 2. WORKS ON MULTIPLE STYLES OF TREMS - for original FR, FR special & FR 5. DOES NOT WORK ON - Kahler bridges, bridges, bridges with fine tuners that are at a 45 degree angle to the guitar top