Very small dogs Deltamethrin 0.636 g Titanium dioxide 0.239 g Small and medium dogs Deltamethrin 1.056 g Titanium dioxide 0.396 Mode and route of administration Fits around necks, Anti-strangulation safety. Dosage One collar per dog. Special warnings Read instruction leaflet before use. Keep in original packaging until use to prevent children from accessing the collar. Dogs wearing the collar should not be allowed to sleep in the same bed as their owners, especially children. Special storage precautions Keep pouches in the outer carton or metal box to protect from light.