LB2011 Nebulizer Mask Made of clear, medical grade PVC With adjustable nose clip, elastic strap with/without latex Color: green transparent, white transparent and light blue transparent is available. Length: with 2m tubing, different length can be customized, Anti-crush tube can ensure oxygen follow even if the tube is kinked. Packing: packed in individual PE pack.50 pcs/carton or 100 pcs/carton.