All Parts TK-0908-001 Gotoh GB10 4-in-line Bass Keys-Nickel

These Gotoh GB10 bass keys are 4-in-line with press fit bushings. They're nickel-plated and have a 21:1 ratio. The PLU number is TK0908001.

To use these bass keys, simply install them on your bass instrument where needed. Make sure they're properly aligned for smooth operation. When installing, be gentle with the press fit bushings to avoid damage. As for maintenance, clean the nickel-plated surface regularly with a soft, dry cloth to keep it looking good. Avoid using harsh chemicals as they might damage the finish. Check the keys periodically for any signs of wear or looseness and tighten them if necessary.