We are offering double lumen catheter kitcomplete set of cvc kit includes the following basic components: central venous catheter dilator .035" guidewire "j" tip which is felxible for ease of insertion 5cc syringe with luner lock provide secure connection to needle scalpel #11-short(optional) needle 18 ga x 2-34 e.t.o. Sterile and pyrogen free. item description lumen size in ga guide wire2-lumen cvp cath 4 fr 8 cms 20, 22 0.018x45 cms2-lumen cvp cath 5 fr 8 cm 18, 20 0.021x45 cm2-lumen cvp cath 7 fr 16 cms 14, 18 0.035x45 cm product code : dlc-01