Each tag includes a male button for attachment.PYthon® is a powerful pyrethroid tag containing aunique, synergized formulation of 10% zeta-cypermethrinand 20% piperonyl butoxide. PYthon provides rapid, almost immediate pest knockdown.At one tag per head, PYthon® controls horn flies for 3 to 4 months and up to 5months with two tags per head. Ideal for rotation with WARRIOR™ or other organophosphatetags to manage horn fly resistance to insecticides.