3D masks with Shinkansen (bullet train) design, 10 masks per pack, compliant with JIS standards. The bag is wrinkled, but the masks are unused. Please understand that these have been stored at home. 10 masks per pack x 2 = 20 masks total - Quantity: 10 masks per pack - Design: Shinkansen pattern - Standard: Compliant with JIS standards - Filter Performance: PFE, VFE, and BFE values available Thank you for viewing.