Specifications: Material: non-woven Weight: 140g Color: Blue Flexibility: adjustable nose piece Size: 175*92卤5mm Qty: 50pcs/bag Feature: - High quality: They consist of high-quality nonwovens. Comfort, softness and excellent breathability. It can fit your face perfectly for better protection. - Multi-layer protection: 3 layers of dust-proof filter mask protect you from virus, dust, ash, pollen, fine dust, solid fine dust particles and car exhaust fumes and thus effectively protect your lungs. - Flexibility: 50 masks, disposable masks with elastic earbands and adjustable nose bridges - can effectively protect your daily health. The ear hook is robust and flexible and suitable for adults and children. - Function: Suitable for various workplaces: mowing, carpentry, spraying, food processing and other outdoor activities. You can breathe healthy. Package Contents: 50 x Face masksSurgical Face Mask Made in China website:http://www.zj-mask.com/face-mask/surgical-face-mask/