Jackson Safety TrueSight II Welding Internal Safety Lens (30321), Protects Your ADF, Clear, 10 Units / Case 10 Jackson Safety TrueSight II Internal Safety Lens / Case Clear internal 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