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Fluorescent Glow
These Humbucker Mounting Rings are for Standard size Humbucker pickups (such as, Seymour Duncan, Dimarzio, etc...). They are a Flat Ring, at about 1/8inch thick, and are made for a Flat Top guitar, but do have a little give for a small arch or contour. These are made from a special Fluorescent Acrylic that re-emits UV Rays for a "glowing" appearance. Note that colors and shades will vary depending on the lighting, and will differ on light/dark backgrounds.