These nickel-finish vintage-style tuner bushings are a great, affordable finishing touch for your new build or repair job. These bushings are meant to work with post-style tuners. Measurement specs for this item are: Inside Diameter: 0.25" Outside Diameter (shank): 0.28" Outside Diameter (Rim): 0.39" Overall Height: 0.310" Please note that the tuner installation shown in the photo is for demonstration purposes only; only the bushings are included with this product. This demonstration photo shows the Nickel finish bushings.