ARC-O-LITE Circular Dome pre-assembled plastic skylights manufactured by Architectural Plastics Limited, Mississauga, Ont.; of size and type as per Model No._________ ; complete with clear outer dome, [clear] [white translucent] inner dome and 50mm (2") wide x [229mm (9")] [100mm (4")] high inslulated 6063-T5 mill finished aluminum curb.