???NOT A ONE-OFF??Is Made of Polyester Fiber, Breathability Comfortable,washable, Reusable, Easy to Care for Durability. ???HUMANIZATION DESIGN??Dust Masks Ergonomic Cut on Nose and Adjustable Elastic is Enough for Cover Nose, Mouth and Face. Very Comfort to Wear and Effortless Breathable. ???FEATURE??M-7.9L??5.9W(20cm x 15cm), Easy to Wear. The Mask’s Strap Has a Button That Adjusts the Tightness. ( Elastic Cords Can Be Dangerous for Children, So Be Sure to Stay Away from Children and Not Let Children Play. ) ???OCCASION??Fog and Haze Protective Masks, Which Can Be Used to Protect Our Health from Any Occasion, Any Season, to Protect Our Facial Skin from Dust Particles. You Can Use the Mouth Cover in Any Occasions, Like Cycling, Camping, Hiking, Gardening, Tourism, Outdoor, Shopping, Etc. ???SERVICES??Stylish and Personalized Print Design, We Are Committed to Make It Right for You. If You Have Any Question ,contact Us with the Concern and We Will Find out a Solution for It.