Sentry Dual Action Flea and Tick Collar by Sergeants

Sergeants Sentry Dual Action Flea and Tick Collars kills fleas and ticks for up to 6 months. Each collar is a double layer, sustained-release system containing 3 active agents combining the insecticidal actions and vapors and powders to provide fast acting, quick kill and long lasting head-to-toe protection. Trim collar to fit. Do not use on pets under 12 weeks of age.12”L.