The Equine Express(r) II has two patents that protect the #1 semen& embryo transport system on the market today!Many copies have made the market, but no one has been able to surpass the performance of the Equine Express(r) II cooled semen & embryo transport system!The Equine Express(r) II is the first disposable to utilize all plastic syringes and 50 mL transport tubes in a disposable transport configuration. Contains: 2 - 60ml all plastic sterile syringes & tips, 1- Coolant Pack