Check the listing for details. Plastic Humbucking Pickup Mounting Ring, Flat Bottom, Low - Black. Condition: New. Listed at 2.13 USD. Short plastic humbucker mounting ring is generally used in the neck position. 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 (38.5mm) Pickup cutout length = 2.75 inches (70.3mm) Exterior Dimensions: Exterior width = 1.765 inches (44.8mm) Exterior length = 3.5 inches (88.8mm) Exterior heights tall side = 0.212 inches (5.4mm) Exterior height short side = 0.141 inches (3.58mm) Height holes center to center = 3.075 inches (78.1mm) Mounting holes center to center length = 3.2 inches (81.3mm) Mounting holes center to center width = 1.45 inches (36.8mm) WD Music SKU: HMRBL Professional installation is strongly recommended. Improper installation may result in damage to the product and/or instrument.