Feeding tuber 1.CE, ISO approval 2,Made of non-toxic PVC,with clear scale mark 3.Sterile by ETO gas. 4.valid for 3 years Sterilization PVC Feeding Tube,(medical disposable catheter,medical feeding tube) Feature:1) Made from non-toxic, medical-grade PVC,with scale mark2) Length: 40cm +/-2cm(infant), 120cm+/-2cm(adult)3) Transparent with X-ray available4) Sizes: F4, F6, F8, F10, F12, F14, F16, F18, ...