STERIL. The first sterile disposable milking tube.
To drain milk and to administer medicaments.
 
References
 
GEISHAUSER, T., K. QUERENGÄSSER & J.
QUERENGÄSSER (2005): Teat endoscopy (Theloscopy) for
diagnosis and therapy of milk flow disorders in dairy cows. Vet.
Clin. N. Amer. Food Animal Practice 21 (1), 205-225.