Set of two chrome plated bushings with lock washers and hex nuts used to mount 'piggyback' style amplifier heads to top of speaker cabinets. Internally threaded to accept piggyback thumbscrews (sold separately). Introduced on black and 'blackface' era amps like Showman, Bassman, Bandmaster, Tremolux etc. Also used on current Tone Master 212, Super-Sonic and other models. Brand New. Genuine Fender 0990722000. UPC 717669505769. Photo does not reflect current Fender packaging.