Accurately laser cut vulcanized fiberboard material. Top and bottom with nickel plated eyelets installed.

Top and Bottom flatwork (BLACK) - .093" (2.36mm) thick. Vintage spec. The holes fit the 0.195" (4.95mm) diameter magnets. Spacing is 2.19" (55.6mm)

Fits the Mojotone Jazz Bass Covers, they may not be suitable for other branded Jazz bass covers