1.Made of Non-toxic medical grade PVC 2.Soft tip,standard tip,flared tip and soft tip for choice. 3.With 1.5m tube or could be customized,Anti-crush tube can ensure oxygen follow even if the tube is kinked. 4.Size available:Audlt,Pediatric,Infant,Neonatal. 5.Color: white transparent and light blue transparent for choice. 6.Packed in individual PE bag.sterilized by EO gas,1000 pcs/ctn.