This new product is a chrome rim to fit over the reversing lamp lens, it is made out of chrome plated brass, and it makes a feature out of the reversing lamps.
The 37H7512CRK is the same as 37H7512CR (chrome rim only), but also includes lenses and Fittings, so comes as a kit which includes:
2 x Chrome Rims
2 x Reverse Light Lenses
2 x Lens Seating Gaskets
4 x Threaded Screws (to use on cars 1962-1972)
4 x Self Tapping Screws (to use on cars 1973 onwards)
4 x Spire Nuts (to use on cars 1973 onwards)
4 x Leather Washers