Material: Plastic Function: with 5N11 filter cotton dust - proof use Apply to: For 3*M 6000 7000 Series Industry Anti-dust Face Guard Name: 501 Filter Adapter Quantity: 10PCS Color: Transparent Compatible With: Fit for 3M 501 6800 6001 5N11 5P71 7502 6200 This Is Aftermarket Replacement Item But Not Genuine Note: 1) Color may vary slightly due to the color setting of each individual monitor. Feature: 1) According to the original factory specifications. 2) Perfect match for the original equipment. 3) Easy installation. 4) Stable characteristics, high reliability. Packaging: 10PCS 501 Filter Adapter