Synovex S Steer Implants contain two pure steroid hormones, progesterone and estradiol benzoate. This formulation provides a complementary amount of each hormone for maximal growth stimulation. Each dosageof Synovex S consits of 8 pellets. Synovex S is recommended for use in steers weighing 400 lbs or more. For additional improvement in rate of weight gain in steers fed in confinement for slaughter, reimplant at approximately 70 days. Net contents: 10 cartridges (100 doses) Each cartridge contains 10 rows of 8 pellets.