Our black end plates have a recessed area that is SMALLER than that of our chrome end plates, so you will not be able to label the poundage using our Gold Plated oval decals because the recessed area is not large enough to accommodate them. However, you may purchase our white-on-clear vinyl decals and cut out the numbers with scissors as needed and apply them to the recessed area on the black end caps with a good fit.
Each plate weighs 1.25 lbs so a pair of these will add 2.5 lbs to the actual weight of your dumbbell. The overall diameter is 4-5/8" (4.625") and .325" Thick. The center bolt hole is .717" I.D.