DOBPLAST reflector 904002 yellow reflector 90 mm × 40 mm with holes The DOBPLAST 904002 reflector is a passive reflective safety and contour marking element in a rectangular design with dimensions of 90 mm × 40 mm for fixed mounting via holes on trailers, cars, vans and commercial vehicles. The yellow reflective surface provides improved lateral visibility in road traffic, while the E20 IA homologation allows for use in accordance with standards.