Jackson Safety TrueSight II Welding External Safety Lens (30320), Protects Your ADF, Clear, 10 Units / Case 10 Jackson Safety TrueSight II External Safety Lens / Case Clear external safety lenses Works with the Jackson Safety TrueSight II Digital ADF Welding Helmet (sold separately) Helps protect your auto-darkening filter from sparks, scratches and smoke Must-have replacement part for welders