Schaller M4-90 Bass Machine Heads 3 + 2 Black

Schaller M4-90 lightweight bass tuners offer a 40% weight reduction and are made of high-grade aluminum for durability. They feature a 1:20 gear ratio and special grease for smooth operation.

• The description claims a 40% weight reduction compared to regular tuners.
• The description claims the tuners are made of high-grade aluminum.
• The description claims a 1:20 gear ratio for precise tuning.
• The description claims the interior is lubricated with special grease for maintenance-free service.