Uterine Infusion Tubes are made of PVC and have smooth rounded polished ends. They are designed for use with many of the common bovine uterine solutions. Adapter is included for attaching to a luer tip syringe. NOTE: Syringe not included. Tubes are 21" long and are .110" ID by .196" OD. Packed 25 in a poly bag. Non-sterile.