Three glass frisnel prisma lenzen ,from old navagation lights ,there some age related chips but otherwise good . large one height 150mm width 215mm depth 80mm Middle one height 130mm width 150mm depth 110 mm Round one dia 110 mm height 90 mm Please see the photos as they are part of the listed discription Would make a nice decoration in a nautal setting office yacht club harbour pub etc . Will be well packetd for sending and sent depending where accourding to carriers conditions.