... lock, Made of medical grade polypropylene,WHB 0.5ml effendorf tube is with safe lock,Non sterile,Conical bottom ... offered. ProductStock No.Package0.5ml effendorf tube with safe lock, graduatedWHB-CT151500*101.5ml effendorf tube with safe lock,WHB-CT12500 ... *141.5ml effendorf tube with safe lock, graduatedWHB-CT13500*141.5ml effendorf tube, graduatedWHB ...