Check the listing for details. Plastic Humbucker Pickup Mounting Ring, Slanted Sides, Flat Bottom, High - Black. Condition: New. Listed at 2.67 USD. Tall plastic humbucker mounting ring is generally used in the bridge position on a two or three pickup guitar. This ring is angled in height. It is typically positioned so that the side closest to bridge is taller than the side closest to the neck or fretboard. This listing includes the mounting ring only. A variety of pickup mounting ring and height adjustment screws are available separately. Interior Dimensions: Pickup cutout width = 1.5 inches (38.2mm) Pickup cutout length = 2.76 inches (70.2mm) Exterior Dimensions: Exterior width = 1.76 inches (44.7mm) Exterior length = 3.50 inches (89.1mm) Exterior heights tall side = 0.375 inches (9.5mm) Exterior height short side = 0.295 inches (7.5mm) Height holes center to center = 3.07 inches (78mm) Mounting holes center to center length = 3.185 inches (8.09mm) Mounting holes center to center width = 1.43 inches (36.3mm) WD Music SKU: HMRBH Professional installation is strongly recommended. Improper installation may result in damage to the product and/or instrument.