The product is a lot of two Tamron 13VG550-SQ CCTV lenses, each with a 1/3" sensor and a 5-50mm focal length range, allowing for variable focus control. These lenses feature a fast f/1.4 aperture and are designed for surveillance camera applications. They are suitable for both color day and black and white night vision, with a 1:1.4 aspect ratio. The Tamron brand is known for quality optics, making these lenses a reliable choice for home surveillance systems.