Humbucking pickup ring set, 1 neck and 1 bridge. Slanted with curved bottom. Frequently used on Gibson® Les Paul®

Mounting screw spacing: 81mm center to center
Outside dimensions 3-1/2" x 1-3/4" (89.5mm x 44.3mm)
Inside dimensions 2-3/4" x 1-1/2" (70mm x 38mm)
Bridge Surround Taper: 10.8mm - 9.2mm
Neck Surround Taper: 5.8mm - 4mm