A versatile product, this clear external safety lens, helps protect your auto-darkening filter from sparks, scratches and smoke. Available and packaged in a case of 10, the Jackson Safety TrueSight II External Safety Lens, works well with the Jackson Safety TrueSight II Digital ADF Welding Helmet (sold separately). These external safety lenses are needed to help extend the life of your ADF. Jackson Safety makes sure they carry replacement parts for your welders and professional workers. Established in 1933, Jackson Safety has built a century long reputation for delivering the most innovative safety solutions in the welding and personal protective equipment industries. When it comes to providing safety solutions with long-lasting value, durability and comfort, Jackson Safety has set the standard. Whether the need is for welding protection in a steel fabrication environment, head protection on a construction site, or hearing protection at an airport, Jackson Safety provides the widest range of safety choices to meet the needs of every job and every worker.