Scalibor Dog Collars controls the infestations of ticks‎,‎ mosquitoes and flies for up to 6 months‎.‎ It also has some activity against fleas and is used in some countries as a flea collar‎.‎The Scalibor Dog Collar should be fixed around your dogs neck to control ticks ‎(‎Ixodes ricinus‎;‎ Rhipicephalus sanguineus‎)‎ for 5 to 6 months‎,‎ sand flies ‎(‎Phlebotomus perniciosus‎)‎ for a period of 5 to 6 months and mosquitoes of the species Culex pipiens for 6 months‎.‎The 48 cm collar is to be used on Small & medium dogs‎.‎ Fasten around the neck only‎,‎ one collar per dog‎.‎ For external use only‎.‎ Can be used during pregnancy and lactation‎.‎Scalibor collar for large dogs contains 4.0% deltamethrin which corresponds to 1.0 g deltamethrin per collar‎.‎