PC-5764-C Chrome Guitar Pickup Mounting Rings for Firebird Mini Humbucker

(2) chrome mini humbucker rings for Firebird® guitar and similar applications. Outside: 3-17/32" Wide (3.536" or 89.8mm) 1-17/32" Long (1.538" or 39.1mm). Inside: 2-45/64" Wide (2.704" or 68.7mm) 1-9/64" Long (1.140" or 29mm). Ring Mounting Holes: 3-3/16" Wide (3.190" or 81mm) 1-3/16" Long (1.193" or 30.3mm). Pickup Mounting Hole Spacing = 2-15/16" (2.943" or 74.8mm).