Features:1) Solar auto-darkening welding filter sets available 2) Shade no. 4 - 14 available 3) Two sizes: 4-1/4" x 2", 110 x 90mm (for shade no. 10 or 11) 4) Various sizes of filters available for flip up helmets and hand-hold helmetsVarious sizes of Welding filter. Good quality in good prices. Auto-Darkening Welding Filters (welding product, filter)