MIJ Pickup Rings for Humbucker Flat-Top Rear Black Brand New Made-In-Japan Pickup Mounting Rings for Humbucker This is a pickup mounting rings for Humbucker. Specification: Use: Flat-Top Guitar, Rear | Inside Size: 39mm x 70.5mm | Outside Size: 45mm x 90mm | Hight: 10mm(neck side) 11.7mm(saddle side) | Screw Hole Interval for Body-Ring: 37mm x 82mm | Screw Hole Interval for Ring-Pickup: 78.5mm Shipping Time: in general, up to 2 weeks.