Humbucking pickup ring set - neck and bridge, flat bottom, slanted, cream plastic.
The low mounting rings are for the neck position. The height tapers from 3/16" to 1/4". The tall mounting rings are for the bridge position. The height tapers from 3/8" to 7/16".
Outside dimensions 3-1/2" x 1-3/4" Inside dimensions 2-3/4" x 1-1/2"