Made of clear, medical grade PVC
With adjustable nose clip,elastic strap with/without latex
Medium concentration,approx 50%.
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,50pcs/carton or 100pcs/carton.