Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon GB-0590 Schaller STM Adjustable Roller Tunermatic Save Liquid error (product-badge line 32): -Infinity% $150.00 SKU GB-0590-002 Gold - $150.00 Black - $140.00 Chrome - $115.00 Color: Gold 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Schaller STM roller tunematic, adjustable string spacing, 2-29/32" post spacing.