GardStar plus is a molded plastic cattle ear tag containing permethrin, a fast-acting synthetic pyrethroid. Permethrin is a photostable insecticide with residual effectiveness against a broad spectrum of livestock ectoparasites. GardStar plus tagsweigh .34oz (9.5 grams) each and have fluorescent reddish-orange color for easy field visibility. These tags are applied with the UltraTagger Plus or UltraTagger Compact applicator.