Each tag includes a male button for attachment.GardStar® plus, the original Y-TEX insecticide ear tag,is a pyrethroid tag containing 10% permethrin. It hashad countless applications and works well in areas withpyrethroid susceptible horn fly populations. GardStar® plus also controls Gulf Coast ticks,face flies and spinose ear ticks. In addition, it aids in control of stable flies, house flies, andlice. This 9.5 gram tag can be used on all cattle of any age including lactating dairy cattle.Rotate to WARRIOR™ or OPtimizer® to manage insecticide resistance.