Pricing mentioned is for EA. Requires a minimum buy of 10 piece(s). TrueSight Lens & Cartridges, Internal Safety, 5 1/4 x 4 1/2, Polycarbonate; Hazmat=False; Features=Amber band pass for enhanced clarity of weld puddle;Built-in magnification lens;Four independent sensors positioned to reduce possibility of blockage during weld;Large, separate buttons with LED indicator for Weld, Torch and Grind modes;Low battery indicator;No retainer for easy helmet installation and removal; TestingAndApprovals=CSA Z94.3;Meets ANSI Z87.1-2010; StandardPack=10EA/CA; CountryOfOrigin=US; Color=Clear; Lens Coating/Shade=Clear; Lens Tint=Clear; Material=Polycarbonate; Type=Internal Safety Lens; Used With=TRUESIGHT* ADF; Window Width x Length=5 1/4 in at 4 1/2 in;