1. Length: 440 mm
2. Outer diameter: 4.6 mm
3. Suitable for 0.25 ml & 0.5 ml semen straw
4. Suitable for all kinds of A.I. gun sold on the market
5. The front is smooth, not scratch the cow's cervix when insemination.
6. Sperm not reflux with special design.
7. Package cover act as a health case, prevent pollutants into the semen.
