Replaces pitted or scratched inner protection plate for 3M™ Speedglas™ Welding Filters 9100XX, 9100XXi and G5-01 Plate size: 117 mm x 77 mm Can be used to increase +2 dark shade of the welding filter Protects the inside surface of the filter from sparks and spatter Helps you maintain optimal vision and the correct level of comfort and protection Clean with a soft cloth and replace if any pits or scratches occur 3 per pack