Very nice quality. The Lindy Fralin covers we sell are just a bit more refined and high end but these are a good choice when price is an issue. As on the Fralin raw covers there are some artifacts from the manufacturing process like small acid stains and very fine scratches. People, funky relic is where these belongs. Fits most standard old '50s-'80s Gibson spaced humbuckers, Lindy Fralin Gibson spaced humbuckers and many other vintage Gibson spaced humbuckers exactly. These are 'old school' covers for use on vintage humbuckers where the neck and bridge pickup have the same pole spacing. I measured 49.2mm/1.937" E to E centers.