This is a 5 piece rear bumper filler kit.
Cadillacs Fleetwood, Brougham, Coupe, Deville from 1974, 1975, 1976
Made out of 3 layers of handlaid fiberglass, better quality then those ABS plastic injected units that break into several pieces at impact, fiberglass is repairable ABS much harder if at all repairable.
All kits are sold as unfinished products, prep-work (i.e. sanding, cutting, filling, body work and primer) and painting is required for the best finished look.