The LPM 4' Wrap Around Lens, measuring 47 7/8" in length, is designed to fit 1 or 2 light 4' lighting fixtures. Half-hex style cover. Made from durable white acrylic, it ensures optimal light diffusion and long-lasting performance. Suitable for both broken wrap-around fluorescent and LED light lenses, it offers comprehensive coverage with its 4 1/4" width and 2 7/16" height, ensuring your lighting fixtures are well-protected and functional. Add end caps - simply tek screw the end caps to the fixture, the lens is held up by the end caps.