Back to all products Share this page PDF version 3" Metal Trim Rings Jump to Section Overview Resources Catalog Numbers Compatible PRODUCT IMAGE FINISHES / TYPES White Black Chrome Gold Nickel Bronze Copper Metal Ring for 3" MR16 Trims. I.D. 3 1/8" O.D. 4 5/16". Resources & Downloads Specifications Specifications Product SKU Catalog Number Description Spec RM3B Black Metal Ring RM3BZ Bronze Metal Ring RM3C Chrome Metal Ring RM3CP Copper Metal Ring RM3G Gold Metal Ring RM3N Nickel Metal Ring RM3W White Metal Ring