[We have product instock ready for delivery] This is Eric from Ruicong Medical Equipment Company in Shenzhen of China. We are the professional export business of medical equipment. All our KN95 mask using built-in stick, we have three different kind of it. > 4 layers structure ; > 5 layers structure (2 layers Meltblown); > 5 layers structure with vale. We can offer customs clearance and FOB Hongkong. d you newest catalog of our products.