How much does this cost to the nearest dollar?

Vintage Forge Nickel Metal Flat Top Barrel Knobs for Electric Guitar and Bass (Set of 2) 6mm Shaft with Set Screw
These are high quality Vintage Forge Metal Barrel Flat Top Knobs for Guitar & Bass. Fits 6mm solid shaft pots, and both fine or coarse-knurled split shaft pots. Heavy duty Nickel Finish. Part (These will not fit 1/4 CTS Solid Shaft Pots normally found on US/Mexican Fender Telecaster & P-Bass guitars.) Fits 6mm solid shaft import pots and both fine or coarse-knurled split shaft pots found on Fender, Gibson, and most Asian import guitars. Fits 6mm solid shaft import pots and both fine or coarse-knurled split shaft pots found on F

Price is $13.00

Price: $12.89