brand new and high quality The rollers on them can lessen the stress on your strings, which allows the guitar to stay in tune longer They also can prevent wear and tear on the strings, which results in longer string life for electric guitar and Base Size (L x for W): Approx. 0.43 x 0.23 inch / 11 x 6mm Total Height: Approx. 0.47 inch / 12mm (including the roller) Roller Size (L x D): Approx. 0.4 x 0.2 inch / 10 x 5mm String Spread (Center to Center): Approx. 0.27 inch / 7mm Material: Zinc alloy Color: Black. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: Guitar String Retainers x 2
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