Upgrade your guitar's tuning stability with these premium 6-inline locking tuners. Featuring a vintage-style locking mechanism and traditional thumbscrew functionality, these tuners provide excellent string clamping for enhanced tuning precision. The rock-solid string posts eliminate unwanted movement, while the sophisticated 20:1 gear ratio allows for ultra-fine tuning adjustments. Perfect for non-locking tremolo guitars and players who engage in heavy string bending, these tuners come in an elegant black-plated finish. The set includes all necessary mounting hardware - bushings, washers, and screws - designed to fit 10mm headstock holes. Two post heights cleverly eliminate the need for string trees, streamlining your guitar's setup. Crafted from durable alloy steel in South Korea, these tuners combine classic styling with modern engineering for superior performance. The complete set weighs 160 grams and comes with mounting hardware for easy installation. These tuners represent a significant upgrade for any guitar, offering enhanced tuning stability and smooth operation for the discerning musician.