Check the listing for details. Faber 3117-2 Plus USA/ABR-1 Conversion Posts Gold. Condition: New. Listed at 50.00 USD. Our “PLUS” USA/ABR-1 conversion posts replace the original “sloppy” bridge bushings and integrated posts. The Faber® German steel one piece bushing/post, with separate thumb wheels like the original ABR-1 system, will enhance the tone, sustain and resonance of your guitar! These superior posts are threaded, unlike the unthreaded upper portion of the original posts. The threading allows the installation of the Faber® Tone-Lock™ bridge. These posts also allow the installation of the advanced “no wire” Faber® ABRH bridge, or you can use your original Gibson ABR-1 bridge. Material: Studs, Steel, plated; Thumbwheels, Brass, plated Weight, with thumbwheels: .75 oz./21.3g Overall length: 1.25” / 31.75mm Length below flange: .55” / 14.0mm Post length, above flange: .59” / 15.0mm Post Thread pitch – 6-32 (ABR-1) Diameter, lower section: .276” / 7.0mm Flange diameter: .375” / 9.5mm Flange thickness: .061” / 1.55mm Thumbwheels: Diameter – .63″/16mm; Thickness – .11″/2.8mm