Synovex Primer Implant by Zoetis is a growth promoting subcutaneous implant for cattle. Each implant contains 50 mg of trenbolone acetate and 7 mg of estradiol benzoate, compressed into two pellets. Supplied as a 100-implant pack (10 cartridges x 10 implants), it supports efficient processing for producers. A practical addition to livestock health products when a straightforward cattle implant is needed.