... .50ml,Conical Bottom,with skirtwith Screw cap,Printed Graduations,autoclavableCodeDescriptionPackingRK21001red cap, bulk pack, non-sterile50pcs/polybag, 1000pcs/ctnRK21002blue cap, bulk pack, non-sterile50pcs/polybag ... flow pack, EO sterile1pcs/pack,50pcs/inner box,500pcs/cartonRK21004blue cap, individual flow pack,EO sterile1pcs/pack,50pcs/inner box,500pcs ...