Beaphar Canishield - Anti-parasitic Collar for Large Breed Dogs (65 cm) - Pack of 2 Collars: This anti-parasitic collar has been designed to offer complete protection against fleas, ticks and mosquitoes for a long period of time. Thanks to its neurotoxic action, thanks to the active ingredient deltamethrin, this product acts in contact with external parasites such as ticks, fleas and sandflies. Its effectiveness is demonstrated by its ability to progressively release the molecule through the animal's skin, without penetrating its blood. Available in 65 cm format, this collar is your ally in freeing your dog from infestations