1) it is for single use 2) Butterfly needle , 18G-27G, Needle length 20mm, PVC tube 300mm 3) luer lock or slip Scalp vein set features:(1).We can supply all kinds of scalp vein set;(2) CE certificate and ISO 9002;(3)It is for single use;(4)Butterfly needle , 18G-27G, Needle length 20mm, PVC tube 300mm, luer lock or luer slip fitting;(5)Sterile by EO gas;(6)Packing: poly-bag or blister packing;