Non-toxic, non-pyrogenic, medical grade PVC, stainless steel needle, and latex connector.Vented(Air Inlet) type and Non-vented(Air Needle) type.With Y connection tubing type also available.Standard PVC tubing 150cm long and needle 21Gx1 1/2"(38mm).About 20 drops/ml for adults and about 60 drops/ml for children.Sterilized by Ethylene Oxide gas.Packing specification:Individually polybag packed. 25pcs/vinyl bag. 450pcs/carton box.