·   1.6mm thread luer connector three-piece set

·   Three sets of 2.4mm piercing luer joint

·   3.2mm piercing luer joint three-piece set

·   Four sets of 1.6mm piercing Luer connector

·   Four sets of 2.4mm piercing luer joints

·   3.2mm piercing luer joint four sets

                                                    4 times                                                

                                                 A three-piece