Simple Oxygen Mask Made of clear,medical grade PVC Adjustable nose clip Anti-crush tube Cat. No. Type LB111001 S,Standard child,2m oxygen tubing LB111002 M,Elongated child,2m oxygen tubing LB111003 L,Adult Asia,2m oxygen tubing LB111004 L+,Adult Europe,2m oxygen tubing LB111005 XL,Elongated adult,2m oxygen tubing